Body language is a type of nonverbal communication in which physical behaviours, as opposed to words, are used to express or convey information. Such behaviour includes facial expressions, body posture, gestures, eye movement, touch and the use of space.
It has been suggested that body language may account for between 60 to 65% of all communication.
Understanding body language is important, but it is also essential to pay attention to other cues such as context. In many cases, you should look at signals as a group rather than focusing on a single action.