Humanoid robot bartender "Carl" fills a cocktail glass with spirits to prepare a drink for a guest at the Robots Bar and Lounge in the eastern German town of Ilmenau, July 26, 2013. "Carl", developed and built by mechatronics engineer Ben Schaefer who runs a company for humanoid robots, prepares spirits for the mixing of cocktails and is able to interact with customers in small conversations. Picture taken July 26, 2013. REUTERS/Fabrizio Bensch (GERMANY - Tags: SOCIETY SCIENCE TECHNOLOGY BUSINESS TPX IMAGES OF THE DAY) FOR BEST QUALITY IMAGE SEE: GM1E9820U3Q01