Nonverbal communication occurs in children and in adults. The work will mostly write about the signs emitted by children with their behavior. One should be careful in reading the body because body language is not unique for all. Although most certain gestures have the same or at least similar importance for all, they should be considered in conjunction with other gestures of the body. Mimicry face and body recognition of truth and lies and behavior in conflict situations show how children cope with certain feelings in certain situations. It is important to point out that gesture should not be seen as a gesture of individual, because one alone can have many meanings. Communication includes facts, opinions and feelings that are expressed in various ways. With it, start, establish and maintain relations between people. People are unique in that they verbally express. But with verbal expression, more important is the non-verbal, body language. The body says a lot about a person and her thoughts. It shows what he fears, what he likes and how he deals with certain situations. It has to do with the mind and shows what a person wants to say, whether consciously or unconsciously, intentionally or unintentionally. Boyes was a great put forward in his book (2009, 9): "Body language is a window into what is going on inside the human mind." Looking at someone's gestures, can learn a lot about that person. It is only necessary to follow closely the way of her verbal and non-verbal speech.