A user interface apparatus, computer program, computer readable medium, and method for selecting a selectable object on a display screen is presented. The display screen displays one or more selectable objects. Information regarding a tracked hand position, and a tracked head or eye position of the user are obtained. Based on the tracked hand position and the tracked head or eye position, it is determined whether a said selectable object is located at a first screen position, the first screen position being a position on the display screen such that the first hand at least partly obscures the user's view of the selectable object. If it is determined as so located, then selectable object is determined as selected.