An illustrated guide to more than 850 gestures and their meanings around the world, from a nod of the head to a click of the heels. Gestures convey meaning with a flourish. A vigorous nod of the head, a bold jut of the chin, an enthusiastic thumbs-up: all speak louder than words. Yet the same gesture may have different meanings in different parts of the world. What Americans understand as the "A-OK gesture," for example, is an obscene...