body language

Body language is a type of nonverbal communication in which physical behaviors, as opposed to words, are used to express or convey information. Such behavior includes facial expressions, body posture, gestures, eye movement, touch and the use of space. Although body language is an important part of communication, most of it happens without conscious awareness. In social communication, body language often complements verbal communication.
As an unstructured, ungrammatical, and broadly-interpreted form of communication, body language is not a form of language. It differs from sign language, which are true languages with complex grammar systems and exhibiting the fundamental properties considered to exist in all languages.
Some researchers conclude that nonverbal communication accounts for the majority of information transmitted during interpersonal interactions. It helps to establish the relationship between two people and regulates interaction, yet it can be ambiguous. The interpretation of body language tends to vary in different cultural contexts. Within a society, consensus exists regarding the accepted understandings and interpretations of specific behaviors. However, controversy exists on whether body language is universal.
The study of body language is also known as kinesics.

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