Body language is a form of non-verbal communication involving gestures, postures, and physiological signs. The document discusses body language and its importance, describing how different parts of the body like the head, arms, torso, and legs can communicate messages. It provides tips on body language during communication like maintaining eye contact without staring, taking up space to appear confident, relaxing the shoulders, and nodding when speaking to signal active listening. The document is authored by Sunil Kumar, a research scholar and faculty in food production.