The document discusses nonverbal communication and how over half of messages are communicated nonverbally through appearance, body language, tone of voice, and pace of speaking. It explores how nonverbal cues like gestures, postures, facial expressions, eye contact and tones of voice convey meaning without words. Specific nonverbal behaviors that communicate different emotions, attitudes, levels of interest and evaluations are described. The document also examines how combinations or "clusters" of nonverbal cues together can indicate a person's openness, defensiveness, nervousness, evaluation, suspicion and readiness.