Alexandria City Public Schools Superintendent Dr. Gregory C. Hutchings Jr. elbow bumps student Nataly Gonzalez-Berrios during an in-person hybrid learning day at the Mount Vernon Community School in Alexandria, Virginia, U.S., March 2, 2021. Picture taken March 2, 2021. REUTERS/Tom Brenner TPX IMAGES OF THE DAY

Federal Bureau of Investigation Director Christopher Wray bumps elbows with Senate Judiciary Committee Chairman Dick Durbin, D-IL, after testifying before the committee on the January 6th Insurrection, domestic terrorism and other threats, on Capitol Hill, Washington, U.S., March 2, 2021. Graeme Jennings/Pool via REUTERS

FBI Director Christopher Wray (L) and Chairman Senator Dick Durbin, D-IL, tap elbows after Wray testified before the Senate Judiciary Committee on the January 6th insurrection, in the Hart Senate Office Building on Capitol Hill in Washington, DC, U.S. March 2, 2021. Mandel Ngan/Pool via REUTERS

British Prime Minister Boris Johnson elbow bumps with the Head Girl during his visit to St Mary's CE Primary School, ahead of reopening of the primary and secondary schools across England planned for March 8, in Stoke-on-Trent, Britain March 1, 2021. Christopher Furlong/Pool via REUTERS

U.S. President Joe Biden bumps elbows with a person as he visits the Houston Food Bank in Houston, Texas, U.S., February 26, 2021. REUTERS/Jonathan Ernst

Britain's Prime Minister Boris Johnson elbow bumps a student during his visit to the Accrington Academy, in Accrington, Britain February 25, 2021. Anthony Devlin/Pool via REUTERS

Britain's Prime Minister Boris Johnson elbow bumps a student during his visit to the Accrington Academy, in Accrington, Britain February 25, 2021. Anthony Devlin/Pool via REUTERS

Britain's Prime Minister Boris Johnson elbow bumps a student during his visit to the Accrington Academy, in Accrington, Britain February 25, 2021. Anthony Devlin/Pool via REUTERS

Britain's Prime Minister Boris Johnson elbow bumps a student during his visit to the Accrington Academy, in Accrington, Britain February 25, 2021. Anthony Devlin/Pool via REUTERS

Xavier Becerra, nominee for Secretary of Health and Human Services, elbow bumps Senate Finance Committee Chairman Ron Wyden (D-Ore.) after his nomination hearing on Capitol Hill in Washington, DC, U.S., February 24, 2021. Greg Nash/Pool via REUTERS

Health and Human Services (HHS) nominee Xavier Becerra bumps elbows with Sen. Dianne Feinstein (D-CA) during his Senate Finance Committee hearing on Capitol Hill in Washington, February 24, 2021. Greg Nash/Pool via REUTERS

Health and Human Services (HHS) nominee Xavier Becerra bumps elbows with Sen. Alex Padilla (D-CA) during his Senate Finance Committee hearing on Capitol Hill in Washington, February 24, 2021. Greg Nash/Pool via REUTERS

U.S. Senator Elizabeth Warren (D-MA) elbow bumps Sen. Sheldon Whitehouse (D-R.I.) as they meet with Adewale Adeyemo prior to his Senate Finance Committee nomination hearing to be the next Deputy Treasury Secretary, in Washington, D.C., U.S., February 23, 2021. Greg Nash/Pool via REUTERS

German Finance Minister Olaf Scholz and Interior Minister Horst Seehofer bump elbows as they arrive to attend a news conference on Germany's housing and construction policies, in Berlin, Germany, February 23, 2021. REUTERS/Hannibal Hanschke/Pool

European Council President Charles Michel gives an elbow bump to Eurogroup President Paschal Donohoe as they meet in Brussels, Belgium February 22, 2021. REUTERS/ Johanna Geron Pool

(L-R) Sen. Richard Blumenthal (D-CT) gives an elbow bump to Attorney General nominee Merrick Garland as they arrive for Garland's confirmation hearing before the Senate Judiciary Committee, Washington, DC, U.S., February 22, 2021. Drew Angerer/Pool via REUTERS

Belgium's Foreign Minister Sophie Wilmes and Ireland's Simon Coveney bump elbows as Spain's Arancha Gonzalez Laya looks during an EU Foreign Ministers meeting in Brussels, Belgium February 22, 2021. REUTERS/Yves Herman/Pool

Hanau Mayor Claus Kaminsky elbow-bumps Hesse State Premier Volker Bouffier as they attend a commemoration for the one year anniversary of an attack in Hanau, where a man who had posted a racist manifesto online shot dead nine people in two shisha bars, in Hanau, Germany February 19, 2021. REUTERS/Kai Pfaffenbach/Pool

European?Council?President?Charles Michel and European Union High Representative for Foreign Affairs and Security Policy?Josep?Borrell bump elbows before the G5 Sahel Summit via video conference in Brussels, Belgium February 16, 2021. REUTERS/Johanna Geron/Pool

European Council President Charles Michel and European Union High Representative for Foreign Affairs and Security Policy Josep Borrell bump elbows before the G5 Sahel Summit via video conference in Brussels, Belgium February 16, 2021. REUTERS/Johanna Geron/Pool

Britain's Prime Minister Boris Johnson bumps elbows with a woman during a visit to a coronavirus vaccination centre at the Health and Well-being Centre in Orpington, South-East of London, Britain February 15, 2021. Jeremy Selwyn/Pool via REUTERS

Israeli Prime Minister Benjamin Netanyahu and Cypriot President Nicos Anastasiades bump elbows during their meeting in Jerusalem February 14, 2021. Marc Israel Sellem/Pool via REUTERS

Britain's Prime Minister Boris Johnson, wearing a face mask to prevent the spread of the coronavirus disease (COVID-19), elbow bumps a person as he visits the QuantuMDx Biotechnology company, in Newcastle, Britain, February 13, 2021. Ian Forsyth/Pool via REUTERS

U.S. Senate Chaplain Barry Black elbow bumps a U.S. Capitol Police officer as he arrives at the Capitol before the start of day four of the impeachment trial at the Senate in Washington, U.S., February 12, 2021. Bill Clark/Pool via REUTERS REFILE - CORRECTING TRIAL DAY COUNT

New York U.S. Army National Guard member Vincent Scalise, on duty as security at the U.S. Capitol, elbow bumps U.S. Senator Bill Cassidy (R-LA) in the U.S. Senate subway as Cassidy heads to the Senate Chamber to attend as former U.S. President Donald Trump's attorneys begin pleading Trump's defense case during the fourth day of the impeachment trial of the former president on charges of inciting the deadly attack on the U.S. Capitol, on Capitol Hill in Washington, U.S., February 12, 2021. REUTERS/Jonathan Ernst

Chairman Bernie Sanders (I-VT) and Ranking Member Lindsey Graham (R-SC) elbow-bump each other at a hearing to examine the nomination of Neera Tanden, President Joe Bidens nominee for Director of the Office of Management and Budget (OMB), on Capitol Hill in Washington, U.S., February 10, 2021. Anna Moneymaker/Pool via REUTERS

California Governor Gavin Newsom bumps elbows with San Diego Mayor Todd Gloria, next to San Diego County Supervisor Nathan Fletcher, after a news conference to launch a coronavirus disease (COVID-19) vaccination supersite in San Diego, California, U.S. February 8, 2021. Sandy Huffaker/Pool via REUTERS.

The United Nations High Commissioner for Refugees (UNHCR) Filippo Grandi bumps elbows with Colombia's President Ivan Duque during the announcement of the granting of legal status of temporary protection to Venezuelan migrants, in Bogota, Colombia February 8, 2021. REUTERS/Luisa Gonzalez

Britain's Prime Minister Boris Johnson bumps elbows with a staff member as he visits SureScreen Diagnostics, amidst the coronavirus disease (COVID-19) outbreak, in Derby, Britain February 8, 2021. REUTERS/Phil Noble/Pool

Britain's Prime Minister Boris Johnson bumps elbows with a staff member as he visits SureScreen Diagnostics, amidst the coronavirus disease (COVID-19) outbreak, in Derby, Britain February 8, 2021. REUTERS/Phil Noble/Pool

U.S. Vice President Kamala Harris gives an elbow bump to Democratic Senator from Vermont Patrick Leahy at a ceremonial swearing-in of Senator Leahy as President Pro Tempore of the Senate, in the Old Senate Chamber on Capitol Hill in Washington, U.S. February 4, 2021. Michael Reynolds/Pool via REUTERS

Salvador Illa, candidate for the regional government of Catalonia from the Socialist Party of Catalonia (PSC), prepares to bump elbow with Spain's Energy and Environment Minister Teresa Ribera during a campaign meeting ahead of the Catalan elections on February 14, in Barcelona, Spain, February 4, 2021. REUTERS/Albert Gea

New Secretary of Transportation Pete Buttigieg watches his husband elbow bump U.S. Vice President Kamala Harris after she ceremonially swore in Buttigieg at the White House in Washington, U.S., February 3, 2021. REUTERS/Kevin Lamarque

New Secretary of Transportation Pete Buttigieg watches as his husband Chasten and second gentleman Douglas Emhoff elbow bump after Buttigieg was ceremonially sworn-in by U.S Vice President Kamala Harris at the White House in Washington, U.S., February 3, 2021. REUTERS/Kevin Lamarque

French President Emmanuel Macron elbow bumps with Slovakia's Prime Minister Igor Matovic as he arrives at the Elysee Palace in Paris, France, February 3, 2021. REUTERS/Benoit Tessier

French President Emmanuel Macron elbow bumps with Slovakia's Prime Minister Igor Matovic as he arrives at the Elysee Palace in Paris, France, February 3, 2021. REUTERS/Benoit Tessier

Britain's Prime Minister Boris Johnson elbow bumps with the community leader Rafik Dabhad during a visit at a COVID-19 vaccination centre in Batley, West Yorkshire, Britain February 1, 2021. Jon Super/Pool via REUTERS

Britain's Prime Minister Boris Johnson elbow bumps Ismail Patel after getting his shot during a visit at a COVID-19 vaccination centre in Batley, West Yorkshire, Britain February 1, 2021. Jon Super/Pool via REUTERS

Senate Veterans Affairs Committee Chairman Jerry Moran, R-KS, bumps elbows with Denis McDonough, Secretary of Veterans Affairs nominee of U.S. President Joe Biden, before the nominee testifying during his Senate Veterans' Affairs Committee confirmation hearing in Washington, D.C., U.S., January 27, 2021. Leigh Vogel/Pool via REUTERS

Newly confirmed U.S. Secretary of State Antony Blinken is greeted with an elbow bump as he arrives for a welcome ceremony at the State Department in Washington, U.S., January 27, 2021. REUTERS/Carlos Barria/Pool

New U.S. Defense Secretary Lloyd Austin receives an elbow bump from Vice President Kamala Harris prior to being sworn in by Harris during a brief ceremony in the Roosevelt Room at the White House in Washington, U.S., January 25, 2021. REUTERS/Kevin Lamarque TPX IMAGES OF THE DAY

New U.S. Defense Secretary Lloyd Austin receives an elbow bump from Vice President Kamala Harris prior to being sworn in by Harris during a brief ceremony in the Roosevelt Room at the White House in Washington, U.S., January 25, 2021. REUTERS/Kevin Lamarque

Britain's Prime Minister Boris Johnson bumps elbows with an Environment Agency worker as he is shown flood defences put in place, during his visit to Withington in Manchester, as Storm Christoph brings heavy rains and flooding across the country, Britain January 21, 2021. Paul Ellis/Pool via REUTERS

Hillary Clinton bumps elbows with Rep. Sean Maloney (D-N.Y.) prior to the 59th Presidential Inauguration in Washington, U.S., January 20, 2021. Greg Nash/Pool via REUTERS

U.S. President-elect Joe Biden's nominee for Secretary of Defense Retired Army Gen. Lloyd Austin elbow bumps Sen. Martin Heinrich (D-NM) as he arrives for his confirmation hearing before the Senate Armed Services Committee in Washington, U.S. January 19, 2021. Greg Nash/Pool via REUTERS

Avril Haines bumps elbows with Senator Ben Sasse (R-NE) before the start of her confirmation hearing in front of the Senate Intelligence Committee to be President-elect Joe Biden's national intelligence director in Washington, DC, U.S. January 19, 2021. Joe Raedle/Pool via REUTERS

The new elected Christian Democratic Union (CDU) party leader Armin Laschet bumps elbows with outgoing CDU leader Annegret Kramp-Karrenbauer during the party's 33rd congress, held online because of the coronavirus disease (COVID-19) pandemic, in Berlin, Germany, January 16, 2021. REUTERS/Hannibal Hanschke

China's Foreign Minister Wang Yi and Philippine's Foreign Affairs Secretary Teodoro Locsin Jr., bump their elbows during a meeting in Manila, Philippines January 16, 2021. Francis Malasig/Pool via REUTERS

China's Foreign Minister Wang Yi and Philippine's Foreign Affairs Secretary Teodoro Locsin Jr., bump their elbows during a meeting in Manila, Philippines January 16, 2021. Francis Malasig/Pool via REUTERS

Britain's Health Secretary Matt Hancock bumps elbows with a staff member during his visit at a NHS mass coronavirus vaccination centre at Epsom Race Course in Epsom, Surrey, Britain January 11, 2021. Dominic Lipinski/Pool via REUTERS

Democratic U.S. Senate candidate from Georgia Jon Ossoff elbow bumps with a supporter prior to the arrival of U.S. President-elect Joe Biden at a drive-in campaign rally ahead of the January 5 run-off elections, in Atlanta, Georgia, U.S., January 4, 2021. REUTERS/Jonathan Ernst

U.S. President-elect Joe Biden elbow bumps Democratic U.S. Senate candidate from Georgia Jon Ossoff as he campaigns on behalf of Ossoff and Raphael Warnock, ahead of their January 5 run-off elections, during a drive-in campaign rally in Atlanta, Georgia, U.S., January 4, 2021. REUTERS/Jonathan Ernst

U.S. President-elect Joe Biden elbow bumps Democratic U.S. Senate candidate from Georgia Jon Ossoff as he campaigns on behalf of Ossoff and Raphael Warnock, ahead of their January 5 run-off elections, during a drive-in campaign rally in Atlanta, Georgia, U.S., January 4, 2021. REUTERS/Jonathan Ernst

Democratic U.S. Senate candidate from Georgia Jon Ossoff shares elbow bumps with supporters prior to the arrival of U.S. President-elect Joe Biden at a drive-in campaign rally ahead of the January 5 run-off elections, in Atlanta, Georgia, U.S., January 4, 2021. REUTERS/Jonathan Ernst

U.S. Rep. Alexandria Ocasio-Cortez (D-NY) offers a colleague an elbow bump on the floor of the House Chamber a members of congress gathered to take their oath of office during the first session of the 117th Congress on Capitol Hill in Washington, U.S., January 3, 2021. REUTERS/Joshua Roberts

Sen. Joni Ernst, R-Iowa, greets Vice President Mike Pence with an elbow bump at an oath of office reenactment ceremony in the Old Senate Chamber at the Capitol in Washington, D.C. January 3, 2021. J. Scott Applewhite/Pool via REUTERS

Senator Jeff Merkley (D-OR) bumps elbows with Vice President Mike Pence during a swearing-in for the 117th Congress in the Old Senate Chambers at the U.S. Capitol Building in Washington, DC, U.S. January 3, 2021. Kevin Dietsch/Pool via REUTERS

Senator James Risch (R-ID) bumps elbows with Vice President Mike Pence during a swearing-in for the 117th Congress in the Old Senate Chambers at the U.S. Capitol Building in Washington, DC, U.S. January 3, 2021. Kevin Dietsch/Pool via REUTERS

Senator James Risch (R-ID) wears a protective mask while greeting U.S. Vice President Mike Pence with an elbow bump during a swearing-in ceremony for the 117th Congress in the Old Senate Chambers at the U.S. Capitol Building in Washington, DC, U.S. January 3, 2021. Samuel Corum/Pool via REUTERS

European Commission President Ursula von der Leyen and European Council President Charles Michel bump elbows after signing Brexit trade agreement due to come into force on January 1, 2021, in Brussels, Belgium December 30, 2020. REUTERS/Johanna Geron/Pool