Gestures play an important role in oral presentations. There are generally three parts to a gesture - the approach, stroke, and return. The types of gestures used in presentations include emblems, iconic gestures, metaphoric gestures, regulators, affect displays, and beat gestures. Emblems have explicit meanings, iconic gestures are descriptive, metaphoric gestures convey abstract concepts visually, regulators facilitate turn-taking, affect displays represent emotions, and beat gestures emphasize points rhythmically.