Fascinating item from GIZMODO...
lifelike robotic hobo, or robo, as they prefer to be called.
Dirk’s movements look realistic, mostly because we’re used to seeing homeless people who are sick or injured slowly shuffling along the street. The robot’s not autonomous, though. Its creator, Fred Abels, hides nearby, usually among the crowd of people that Dirk draws, and controls the robot like a puppet. That allows the bot to realistically interact with people, looking and nodding in their direction, and then playing an organ when someone gives it money.
Read the full piece at its source: http://gizmodo.com/that-homeless-person-you-just-helped-might-actually-be-1784036392