Nonverbal communication includes gestures, body language, posture, facial expressions, eye contact, and paralanguage. Gestures can be emblems, illustrators, displays of emotion, or regulators of interaction. Body language conveys messages through posture, direction of lean, arm position, and openness. Facial expressions primarily show specific emotions like fear, anger, surprise, disgust, happiness, and sadness. Eye contact regulates conversations, shows interest, connects with others, and can command attention or seem cold.