EloraM23: There is a few tv shows that makes me think of your friend - Lie To Me and The Mentalist. Both shows revolve around people who are able to look and talk to a person and learn truths about then without even saying. Lie To Me is based on people who use expressions and gestures etc to learn truths people often don't realise they do. Remember that when we don't speak with our voic we can be still saying lots with our body language.
There are also people that can sense things off us and are really good at interpreting that.