Across the crowded piazza, two friends exchange a glance that contains an entire conversation. In a business meeting, a slight shift in posture changes the room’s dynamics. A parent’s gentle touch instantly comforts a distressed child. These silent exchanges form a rich layer of human communication that operates beneath words—a universal yet deeply personal language that we all speak but rarely examine. Gestures constitute a vocabulary without dictionaries, a grammar without rules, yet they convey meaning with remarkable precision. From the subtle eyebrow raise that says “I’m skeptical” to the open palms that signal “I come in peace,” our bodies communicate what words often cannot. This nonverbal dialogue begins in…