Nature | |
 Physical | Gesture acts physically on an object |
 Symbolic | Gesture depicts a symbol |
 Metaphorical | Gesture indicates a metaphor |
 Abstract | Gesture-task mapping is arbitrary |
Body parts | |
 One hand | Gesture is performed with one hand |
 Two hands | Gesture is performed with two hands |
 Full body | Gesture involves movements of at least one other body part in addition to the hands |
Form | |
 Static | Hand pose is held in one location |
 Dynamic | Gesture contains movements of one or more body parts during the stroke phase |
Viewpoint | |
 Independent | Gesture is independent of the viewpoint |
 Object-centric | Gesture is performed from the object’s point of view |
 User-centric | Gesture is performed from the user’s point of view |