A computer-based method, non-transitory computer-readable medium, and system include performance of actions by a processor operating within a computing device. The actions include displaying a document; observing, using at least one sensor, at least one object associated with a user; determining, based on the observation, whether the at least one object performs one of multiple pre-defined gestures or movements; and, upon determination that the at least one object has performed a one of the pre-defined gestures or movements, manipulating the document based on a pre-defined response to the one of the pre-defined gestures or movements.
