1. An apparatus, comprising: a display; and a computer coupled to the display and configured to present a start button in a corner of the display, to receive, from a sensing device coupled to the computer, an input representing a gaze direction of a user, to identify a target point on the display based on the gaze direction, to present, upon finding that the target point is in proximity to the start button appearing in the corner of the display, one or more second interactive items as tabs arranged radially outward in a concentric pattern around the start button in the corner of the display, and after presenting the one or more second interactive items, to select one of the second interactive items responsively to a shift of the gaze direction such that the target point is in proximity to the one of the second interactive items.