This document discusses various aspects of non-verbal communication including facial expressions, gestures, paralinguistics, body language, proxemics, eye gaze, haptics, and appearance. Facial expressions convey a wide range of emotions universally. Gestures and paralinguistics communicate separately from words through movements and vocal tones. Body language and distances between individuals also provide nonverbal cues. Eye contact and physical touch influence interpersonal interactions. Appearance elicits judgments and affects moods.