An information displaying apparatus includes a presentation displaying unit that displays presentation information on a display unit, a pointing-input receiving unit that receives a pointing to the display unit, a pointing-area detecting unit that detects a pointing area with respect to a predetermined coordinate area including the displayed presentation information, an attention-area determining unit that determines an attention area with respect to the presentation information based on the detected pointing area and an attention-area determination rule, and a highlight displaying unit that displays the determined attention area in a highlighting manner with respect to the presentation information.