1. An apparatus comprising a camera to which a user motion is input: a processor-implemented controller configured to: identify an application activated in relation with the apparatus; activate the camera based at least in part on the application; identify the gesture using the camera; perform a first function in response to the gesture if the application is a first application; and perform a second function in response to the gesture if the application is a second application, wherein one of the first function and the second function being performed comprises: presenting an indication in response to identifying the gesture, and moving the indication from a first location to a second location according to the gesture on a display operatively coupled to the apparatus, and wherein the functions are performed by the processor-implemented controller.