Nao: the robot that expresses and detects emotions!

Nao is able to detect human emotions through a series of non-verbal “clues”, such as body-language and facial expressions, and becomes more adept at reading a person’s mood through prolonged interaction. "We're modelling the first years of life," said Lola Cañamero, a computer scientist at the University of Hertfordshire who led the project to create Nao's emotions. Source: http://www.telegraph.co.uk/technology/news/7934318/Nao-the-robot-that-expresses-and-detects-emotions.html