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Three air gesture interfaces for browsing menus while driving were compared for menu selection tasks involving short or long menus. Driving performance, subjective workload, and menu task performance were measured. While performance was similar for short menus, for longer menus a repeated 'swipe' gesture did not perform as well as an 'angle scroll' gesture. A third, novel gesture that could have worked efficiently for either long or short menus was worst performing overall and may be too difficult to use effectively.