Pope Francis shakes hands with Italian Prime Minister Mario Draghi at a conference on the Demographic Crisis in Rome, Italy May 14, 2021. Andrew Medichini/Pool via REUTERS

Pope Francis shakes hands with Italian Prime Minister Mario Draghi at a conference on the Demographic Crisis in Rome, Italy May 14, 2021. Andrew Medichini/Pool via REUTERS

Muslim worshipers shake hands after holding morning Eid al-Fitr prayers in the Brooklyn borough of New York City, New York, U.S., May 13, 2021. REUTERS/Stephanie Keith

Soccer Football - Serie A - Inter Milan v AS Roma - San Siro, Milan, Italy - May 12, 2021 AS Roma coach Paulo Fonseca shakes hands with Inter Milan coach Antonio Conte before the match REUTERS/Alessandro Garofalo

Newly appointed caretaker Prime Minister Stefan Yanev shakes hands with Bulgaria's President Rumen Radev during an official ceremony in Sofia, Bulgaria, May 12, 2021. REUTERS/Stoyan Nenov

Soccer Football - Copa Libertadores - Group A - Independiente del Valle v Palmeiras - Estadio Rodrigo Paz Delgado, Quito, Ecuador - May 11, 2021 Palmeiras coach Abel Ferreira shakes hands with Independiente del Valle coach Renato Paiva before the match Pool via REUTERS/Franklin Jacome

Soccer Football - La Liga Santander - Real Madrid v Sevilla - Estadio Alfredo Di Stefano, Madrid, Spain - May 9, 2021 Real Madrid coach Zinedine Zidane shakes hands with Thibaut Courtois after the match REUTERS/Susana Vera

Formula One F1 - Spanish Grand Prix - Circuit de Barcelona-Catalunya, Barcelona, Spain - May 8, 2021 Mercedes' Lewis Hamilton shakes hands with Red Bull's Max Verstappen after qualifying REUTERS/Nacho Doce

Soccer Football - Ligue 1 - RC Lens v Lille - Stade Bollaert-Delelis, Lens, France - May 7, 2021 Players shake hands after the match REUTERS/Pascal Rossignol

Captain Beany shakes hands with Labour's Mark Drakeford, Welsh First Minister following the announcement of results in the Senedd and Police & Crime Commissioner Elections at a sports centre being used as a counting centre in Cardiff, Wales, Britain, May 7, 2021. REUTERS/Rebecca Naden

Soccer Football - Europa League - Semi Final Second Leg - AS Roma v Manchester United - Stadio Olimpico, Rome, Italy - May 6, 2021 Manchester United manager Ole Gunnar Solskjaer shakes hands with AS Roma's Rick Karsdorp after the match REUTERS/Alberto Lingria

Soccer Football - Europa League - Semi Final Second Leg - AS Roma v Manchester United - Stadio Olimpico, Rome, Italy - May 6, 2021 Manchester United manager Ole Gunnar Solskjaer shakes hands with Eric Bailly after the match REUTERS/Alberto Lingria

Soccer Football - Europa League - Semi Final Second Leg - AS Roma v Manchester United - Stadio Olimpico, Rome, Italy - May 6, 2021 Manchester United manager Ole Gunnar Solskjaer shakes hands with AS Roma's Rick Karsdorp after the match REUTERS/Alberto Lingria

Soccer Football - Europa League - Semi Final Second Leg - AS Roma v Manchester United - Stadio Olimpico, Rome, Italy - May 6, 2021 Manchester United's Paul Pogba shakes hands with Manchester United manager Ole Gunnar Solskjaer after being substituted REUTERS/Alberto Lingria

Children shake hands as they begin a chess game in a community palace in Makoko, Lagos, Nigeria May 5, 2021. Picture taken May 5, 2021. REUTERS/Temilade Adelaja

Russian Foreign Minister Sergei Lavrov shakes hands with Palestinian Foreign Minister Riyad al-Maliki during a news conference following their talks in Moscow, Russia May 5, 2021. Alexander Zemlianichenko/Pool via REUTERS

Russian Foreign Minister Sergei Lavrov shakes hands with Palestinian Foreign Minister Riyad al-Maliki during a news conference following their talks in Moscow, Russia May 5, 2021. Alexander Zemlianichenko/Pool via REUTERS

U.S. citizen Finnegan Lee Elder, accused of killing Carabinieri military police officer Mario Cerciello Rega, shakes hands with his lawyer Renato Borzone following a hearing of the trial, in Rome, Italy May 5, 2021. REUTERS/Remo Casilli

Formula One F1 - Portuguese Grand Prix - Algarve International Circuit - Portimao, Portugal - May 2, 2021 Mercedes' Lewis Hamilton shakes hands with Red Bull's Max Verstappen after winning the race Pool via REUTERS/Gabriel Bouys TPX IMAGES OF THE DAY

Formula One F1 - Portuguese Grand Prix - Algarve International Circuit - Portimao, Portugal - May 2, 2021 Mercedes' Lewis Hamilton shakes hands with Red Bull's Max Verstappen after winning the race Pool via REUTERS/Gabriel Bouys

President of El Salvador's Congress, Ernesto Castro, shakes hands with the new president of the Supreme Court, Oscar Lopez Jerez, as the congress removed the Supreme Court judges, at the Salvadoran congress, in San Salvador, El Salvador, May 1, 2021. REUTERS/Jose Cabezas

Soccer Football - Serie A - Crotone v Inter Milan - Stadio Ezio Scida, Crotone, Italy - May 1, 2021 Inter Milan coach Antonio Conte shakes hands with referee Alessandro Prontera after the match REUTERS/Ciro De Luca

U.S. House Republican Conference Chairperson Rep. Liz Cheney (R-WY) shakes hands with Senate Minority Leader Mitch McConnell (R-KY) on the floor of the U.S. House Chamber as they await the start of President Joe Biden's first address to a joint session of the U.S. Congress at the U.S. Capitol in Washington, U.S., April 28, 2021. REUTERS/Jonathan Ernst/Pool

U.S. House Republican Conference Chairperson Rep. Liz Cheney (R-WY) shakes hands with Senate Minority Leader Mitch McConnell (R-KY) on the floor of the U.S. House Chamber as they await the start of President Joe Biden's first address to a joint session of the U.S. Congress at the U.S. Capitol in Washington, U.S., April 28, 2021. REUTERS/Jonathan Ernst/Pool

Russia's Foreign Minister Sergei Lavrov shakes hands with Mexico's Foreign Minister Marcelo Ebrard during a news conference following their meeting in Moscow, Russia April 28, 2021. Yuri Kochetkov/Pool via REUTERS

Soccer Football - Women's Champions League - Semi Final First Leg - Paris St Germain v FC Barcelona - Stade Municipal Georges Lefevre, Saint-Germain-en-Laye, France - April 25, 2021 Barcelona's Aitana Bonmati shakes hands with Paris St Germain's Sara Dabritz after the match REUTERS/Christian Hartmann

Syria's Health Minister Hassan Ghabash shakes hands with Chinese Ambassador to Syria, Feng Biao, after a batch of China's Sinopharm COVID-19 vaccine arrived as a donation, at the airport in Damascus, Syria April 24, 2021. REUTERS/Yamam al Shaar

Soccer Football - Copa Sudamericana - Group H - Gremio v La Equidad - Arena do Gremio, Porto Alegre, Brazil - May 22, 2021 Gremio's Gabriel Hamester Grando shakes hands with La Equidad's Jefferson Mena after the match Pool via REUTERS/Diego Vara

New York Governor Andrew Cuomo shakes hands with a man during a ground breaking ceremony at the Bay Park Water Reclamation Facility in East Rockaway, New York, U.S., April 22, 2021. Spencer Platt/Pool via REUTERS

A man shakes water from his hair after jumping into the water at Sandycove in Dublin, Ireland, April 22, 2021. REUTERS/Clodagh Kilcoyne TPX IMAGES OF THE DAY

Soccer Football - Serie A - Spezia v Inter Milan - Stadio Dino Manuzzi, La Spezia, Italy - April 21, 2021 Inter Milan coach Antonio Conte shakes hands with Ivan Perisic after he was substituted REUTERS/Jennifer Lorenzini

Soccer Football - Serie A - Spezia v Inter Milan - Stadio Dino Manuzzi, La Spezia, Italy - April 21, 2021 Inter Milan coach Antonio Conte shakes hands with Christian Eriksen after he was substituted REUTERS/Jennifer Lorenzini

Soccer Football - Premier League - Aston Villa v Manchester City - Villa Park, Birmingham, Britain - April 21, 2021 Aston Villa manager Dean Smith shakes hands with Manchester City manager Pep Guardiola before the match REUTERS/Michael Steele

Tennis - ATP Masters 1000 - Monte Carlo Masters - Monte-Carlo Country Club, Roquebrune-Cap-Martin, France - April 17, 2021 Greece's Stefanos Tsitsipas shakes hands with Britain's Dan Evans after winning his semi final match REUTERS/Eric Gaillard

Tennis - ATP Masters 1000 - Monte Carlo Masters - Monte-Carlo Country Club, Roquebrune-Cap-Martin, France - April 16, 2021 Russia's Andrey Rublev shakes hands with Spain's Rafael Nadal after winning his quarter final match REUTERS/Eric Gaillard

Russian Foreign Minister Sergei Lavrov shakes hands with Serbian Foreign Minister Nikola Selakovic during a news conference following their meeting in Moscow, Russia April 16, 2021. Yuri Kochetkov/Pool via REUTERS

Russian Foreign Minister Sergei Lavrov attempts to shake hands with Serbian Foreign Minister Nikola Selakovic during a news conference following their meeting in Moscow, Russia April 16, 2021. Yuri Kochetkov/Pool via REUTERS

Tennis - ATP Masters 1000 - Monte Carlo Masters - Monte-Carlo Country Club, Roquebrune-Cap-Martin, France - April 16, 2021 Britain's Dan Evans and Belgium's David Goffin shake hands after their quarter final match REUTERS/Eric Gaillard

Tennis - ATP Masters 1000 - Monte Carlo Masters - Monte-Carlo Country Club, Roquebrune-Cap-Martin, France - April 16, 2021 Greece's Stefanos Tsitsipas and Spain's Alejandro Davidovich Fokina shake hands after Fokina retired from their quarter final match REUTERS/Eric Gaillard

Tennis - ATP Masters 1000 - Monte Carlo Masters - Monte-Carlo Country Club, Roquebrune-Cap-Martin, France - April 15, 2021 Britain's Dan Evans and Serbia's Novak Djokovic shake hands after their third round match REUTERS/Eric Gaillard

Tennis - ATP Masters 1000 - Monte Carlo Masters - Monte-Carlo Country Club, Roquebrune-Cap-Martin, France - April 15, 2021 Greece's Stefanos Tsitsipas and Chile's Cristian Garin shake hands after their third round match REUTERS/Eric Gaillard

Soccer Football - Champions League - Quarter Final Second Leg - Borussia Dortmund v Manchester City - Signal Iduna Park, Dortmund, Germany - April 14, 2021 Manchester City's Rodrigo shakes hands with Ilkay Gundogan as Borussia Dortmund's Erling Braut Haaland reacts after the match Pool via REUTERS/Wolfgang Rattay

Soccer Football - Champions League - Quarter Final Second Leg - Chelsea v Porto - Ramon Sanchez Pizjuan, Seville, Spain - April 13, 2021 Chelsea manager Thomas Tuchel shakes hands with Cesar Azpilicueta after the match REUTERS/Marcelo Del Pozo

Soccer Football - Champions League - Quarter Final Second Leg - Chelsea v Porto - Ramon Sanchez Pizjuan, Seville, Spain - April 13, 2021 Chelsea manager Thomas Tuchel shakes hands with FC Porto's Pepe after the match REUTERS/Marcelo Del Pozo

Soccer Football - Champions League - Quarter Final Second Leg - Chelsea v Porto - Ramon Sanchez Pizjuan, Seville, Spain - April 13, 2021 Chelsea manager Thomas Tuchel shakes hands with Mateo Kovacic after the match REUTERS/Marcelo Del Pozo

Soccer Football - Champions League - Quarter Final Second Leg - Chelsea v Porto - Ramon Sanchez Pizjuan, Seville, Spain - April 13, 2021 Chelsea manager Thomas Tuchel shakes hands with Reece James after the match REUTERS/Marcelo Del Pozo

Soccer Football - Champions League - Quarter Final Second Leg - Chelsea v Porto - Ramon Sanchez Pizjuan, Seville, Spain - April 13, 2021 Chelsea manager Thomas Tuchel shakes hands with Kai Havertz after the match REUTERS/Marcelo Del Pozo

Soccer Football - Champions League - Quarter Final Second Leg - Paris St Germain v Bayern Munich - Parc des Princes, Paris, France - April 13, 2021 Bayern Munich's Leroy Sane shakes hands with Paris St Germain coach Mauricio Pochettino after the match REUTERS/Christian Hartmann

Soccer Football - Women's International Friendly - Wales v Denmark - Cardiff City Stadium, Cardiff, Wales, Britain - April 13, 2021 Wales' Jessica Fishlock shakes hands with Denmark's Nicoline Sorensen Action Images via Reuters/Andrew Couldridge

New York Governor Andrew Cuomo shakes hands after an event announcing mobile unit vaccination sites for farmworkers and other agribusinesses in New York at the Angry Orchard Cider House in Walden, New York, U.S., April 13, 2021. REUTERS/Shannon Stapleton/Pool

New York Governor Andrew Cuomo shakes hands after an event announcing mobile unit vaccination sites for farmworkers and other agribusinesses in New York at the Angry Orchard Cider House in Walden, New York, U.S., April 13, 2021. REUTERS/Shannon Stapleton/Pool

Golf - The Masters - Augusta National Golf Club - Augusta, Georgia, U.S. - April 11, 2021 Japan's Hideki Matsuyama shakes hands with Xander Schauffele of the U.S. on the 18th green after winning The Masters REUTERS/Mike Segar

Soccer Football - Scottish Premiership - Rangers v Hibernian - Ibrox, Glasgow, Scotland, Britain - April 11, 2021 Rangers manager Steven Gerrard shakes hands with Hibernian manager Jack Ross before the match REUTERS/Russell Cheyne

Soccer Football - La Liga Santander - Real Madrid v Barcelona - Estadio Alfredo Di Stefano, Madrid, Spain - April 10, 2021 Barcelona coach Ronald Koeman shakes hands with Real Madrid coach Zinedine Zidane before the match REUTERS/Sergio Perez

Soccer Football - Ligue 1 - Metz v Lille - Stade Saint-Symphorien, Metz, France - April 9, 2021 Lille's Burak Yilmaz shakes hands with Sven Botman after the match REUTERS/Christian Hartmann

Golf - The Masters - Augusta National Golf Club - Augusta, Georgia, U.S. - April 8, 2021 England's Justin Rose shakes hands with his caddie on the 18th green after completing his first round REUTERS/Brian Snyder

Golf - The Masters - Augusta National Golf Club - Augusta, Georgia, U.S. - April 8, 2021 England's Justin Rose shakes hands with his caddie on the 18th green after completing his first round REUTERS/Brian Snyder

Golf - The Masters - Augusta National Golf Club - Augusta, Georgia, U.S. - April 8, 2021 England's Justin Rose shakes hands with his caddie on the 18th green after completing his first round REUTERS/Jonathan Ernst

Golf - The Masters - Augusta National Golf Club - Augusta, Georgia, U.S. - April 8, 2021 England's Justin Rose shakes hands with his caddie on the 18th green after completing his first round REUTERS/Jonathan Ernst

Golf - The Masters - Augusta National Golf Club - Augusta, Georgia, U.S. - April 8, 2021 England's Justin Rose shakes hands with Ireland's Shane Lowry on the 18th green after completing their first round REUTERS/Mike Segar