Body language plays a large role in communication, conveying 55% of messages according to some studies. It provides intuitive insights into another person's feelings and reactions. Key components of body language include facial expressions, gestures, posture, stance, and spatial relationships. Smiles, frowns, and eye contact universally communicate emotions and interest levels, while gestures like fidgeting or hand positioning provide additional clues. An open body stance signals interest and acceptance, while a closed stance suggests defensiveness or rejection. Spatial relationships also vary depending on the context, from closer personal distances to larger public spaces.