People tend to copy other people’s behaviour, facial expressions or speech when socially interacting with them. Understanding this unintentional mimicry using sophisticated technology was the subject of the INTERHYTHM project.
The tendency of individuals to imitate postures and gestures during social interactions is known as behavioural mimicry. It is commonly believed that being mimicked will lead to liking and trusting the mimicker more but the neural mechanisms which detect being mimicked are not known.
Further details: A virtual reality approach to social interaction