-When you have a big paper-mache stone head on your wall whose lip can be moved up and down
-When you recite every rundown correctly, with pronounciations
-When you sit on the computer chair, hit the armrests, and spin it around, make a loud door opening noise, then race out of the door
-When you can make all the sound effects used on the show (the pendant crashing, the clock bang noises, all the door noises, the temple run music, etc., etc., etc.)
-When you start hitting light switches and opening doors, pretending the house is The Pit of Despair
Guilty of ALL of them. I even have a sound recording of myself when I was 11, reciting the rundown for Season 3. It sounds weird when I spoke into the microphone, but...