body language

Any gesture, posture, or movement of the body or face to nonverbally communicate emotions, information, or emphasis. His voice was calm and steady, but his body language was quite hostile and threatening. Many US presidents develop signature body language that one can easily recognize when they are speaking in public. I could tell by the girl's contracted body language and lack of eye contact that she was terrified to be there.

body language

Gestures, posture, and other movements made by a person that unconsciously convey his or her feelings or attitude. The term dates from about 1960 and, some authorities believe, originated as a translation of the French langage corporel. Tennis commentators on television often point to a player’s body language, usually inferring a discouraged or negative attitude. The term is also used for performers (actors, singers) who consciously use gesture and movement for their presentations.