Gestures: Providing information
Since the features of the face are extremely mobile, they can also convey a great deal of information about changing moods and intentions. We still have little difficulty in understanding expressions of enthusiasm and delight, disgust, anger and amusement. But quite apart from such revelation of emotion, we also send precise messages with our faces. Are the gestures we use today arbitrary ones that we have learned from our parents and share with the rest of the community simply because we have the same social background? Or are they deeply embedded in us and are an inheritance from our prehistoric past. Some gestures do vary between societies and are clearly learned yet others appear to be more universal and deep-seated.