An Example from The Haunted Theater
The Evil Eye
This technique will freak people out even if they are nowhere near a haunted house. But be aware that for some people, it could cause aggressive action... against you!
There are a couple of variations. You will probably recognize this first one from any number of Hollywood movies. But you don't have to be Hollywood to use it well.
This works best if the person does not know you. As you stare straight ahead, slowly turn your head and look at them. Do not change the expression on your face. Do not answer them if they talk to you. If you decide to look away, again slowly turn your head back to the forward position. In all cases, keep your eyes staring straight out from your head as if you can't move your eyes. The key to this is doing it slowly and deliberately.
Human animals do not like to be stared at, much the same way dogs get upset if you stare them in the eye. Something in our basic makeup suggests that someone looking at us oddly is a threat. The slow turning of the head adds to this sense of creepiness and suggests that you are in full control, while at the same time suggesting madness.
A similar technique is also a good one to use in the Haunted House lobby line. If you find several victims standing in front of you waiting to get in, pick a specific victim and keep a steady unblinking gaze on them. Ignore everything they say. Remain silent. Watch as they are fascinated and repelled. They will not be able to stop checking to see if you are still staring. They will probably get somewhat hostile and uppity, but deep down, this really unsettles them. All the brave talk just means you have succeeded in getting to them.
You can capitalize on this when they all turn away for
a moment. Silently take a big stride towards them and stop perfectly still,
staring all the while. When they next turn back to see if you are still there,
they will most likely jump and scatter, because to them it will seem as if you
simply materialized closer to them.