6 Horror Movie Making Tips

After reading this article, how could you incorporate one of these tips into your upcoming horror film? What tips do you feel are the most effective and why?

I feel that those 6 tips would be great If including all to make the movie be a good horror movie with its suspense, but i feel the most effective that will make the movie a real horror movie can be "Creepy Sound Design", adding a sound that matches with the scene, causing tension. For example if there is a girl running by the scary person (monster/ghost/etc) with a mysterious sound in the background for support the scene and make the public feel it. Also "build a suspense" can be combined with the creepy sound and letting the audience know more than the characters.