A combination photo shows a humanoid robot named "Saya" making facial expressions as she takes on a role as a school teacher, during a demonstration at an elementary school in Tokyo May 7, 2009. The robot, developed by the Tokyo University of Science professor Hiroshi Kobayashi, which can speak different languages and make facial expressions with motors inside her face. Saya is seen making the expressions (From L to R) happiness, surprise, anger, disgust and fear. [Agencies]