Abstract: According to some embodiments, hand gestures may be entirely used to control the apparent action of objects on a display screen. As used herein, using “only” hand gestures means that no physical object need be grasped by the user's hand in order to provide the hand gesture commands. As used herein, the term “hand-shaped cursor” means a movable hand-like image that can be made to appear to engage or grasp objects depicted on a display screen. In contrast a normal arrow cursor cannot engage objects on a display screen.