TOKYO, JAPAN - JANUARY 20:  Communication robot "CommU" sit on display during the press conference to introduce the sociable robots, "CommU" and "Sota," hosted by only the robot science communicator Otonaroid and the robot anchor Kodomoroid at the National Museum of Emerging Science and Technology (Miraikan) on January 20, 2015 in Tokyo, Japan. CommU and Sota, developed to improve humanoids' sense of interaction in dialogue, make people feel more engaged in conversation with them by featuring diverse eye movements and gaze directions.  (Photo by Ken Ishii/Getty Images)