Build suspense by posting the first half early in the morning, then make your friends and family wait for the second half later in the afternoon! (ourfamilyworld.com)
It adds to the amount of time he's spent in the room, building the suspense of knowing that someone is coming in at any time. (combustiblecelluloid.com)
And, the story is fairly well written, and does a good job at building suspense and terror. (rottentomatoes.com)