Body language provides important non-verbal cues about communication and attitudes. Research shows that 60-70% of communicated meaning is derived from non-verbal cues like facial expressions, gestures, and body posture rather than just words. Various parts of the body like the head, face, hands, and physical space between people provide clues through behaviors such as nodding, smiling, pointing, and maintaining appropriate distances during interactions. Understanding these unconscious body language signals can provide insight into feelings, confidentiality, and social relationships.