People are getting braver day by day when it comes to horror movies. It is harder to scare people today. And I mean the real scare, that used to creep to our bone marrow and lingered for weeks after the movie ended. Then there are the other kind of horror movies that resort to cheap tricks to give us the thrill to make it just worth our money. Both the types do use the same tricks, albeit in different ways.

Following the protagonist as a third person standing behind them

We are literally shoved into their place in the scene, and automatically, their fears become ours. A very neat trick.

Subliminal images that pop up for a microsecond

Blink and you may miss them. But if you can even spot them for the millisecond they are on screen, they creep you out. Because you are unsure, just like the protagonist, whether you saw it or not.