London Telegraph 
Aug 9, 2010
The world’s first robot to be able to display and detect emotions has been unveiled by European scientists.
The humanoid machine, called Nao, hunches its shoulders when it feels sad and raises its arms for a hug when it feels happy.
It has been designed to mimic the emotional skills of a one-year-old child and is capable of forming bonds with people who treat it with kindness.
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.