You are absolutely right, we get 55% of information about a person through non-verbal communication. This was repeatedly said by the famous Australian writer Allan Pease. Facial expressions, gestures and body movements are able to cast off a mask from a person, revealing his true thoughts and feelings. Someone from birth has a good intuition, but if you do not possess it, all that remains is that an experienced psychologist can help to learn to understand body language, to be able to read the thoughts of others.