Communication consists of spoken words, gestures mainly through hands, eyes and a third category called body language. For children, it may be easier to understand spoken words than gestures and body language although they may keep guessing each time someone sends a non-verbal clue through body language.
Body language alone is sometimes used by people to convey their emotions or feelings; sometimes it is also used to supplement verbal communication. Understanding body language is vital for the survival or success of a child later on in life because they convey lot of things beyond words.
Some children may be quick to interpret body language faster than others. Others may need help and the earlier they are taught, the better.