1. A device, comprising: a display; a sensing unit sensing a tactile interaction at least on the display; an activation point near an edge of the display, the activation point identifying a predetermined command in accordance with a position of the activation point on the display, and the activation point not being explicitly displayed; a detecting unit, detecting a reserved gesture not starting from the activation point and a gesture starting from the activation point representing the predetermined command corresponding to the tactile interaction on the display, wherein the reserved gesture not starting from the activation point, and the gesture starting from the activation point are differentiated; and a processing unit, processing a command based on the detected gesture, wherein the processing unit executes a reserved command corresponding to the reserved gesture when the detecting unit detects the reserved gesture and wherein the processing unit executes the predetermined command represented by the gesture starting from the activation point, when the detecting unit detects the gesture starting from the activation point.