1. Stay with the damn group
2. forbid said group from splitting up
3. get weapons
4. don't call the police, they are always useless in horror movies (like the director would make it that easy for you)
5. stay in well lit areas
6. avoid dark forests and old cabins at all costs. take the killer head on with your fists before you go into those
7. when confronting the killer, use dialogue that would normally appear in other genres. this will confuse him since he/she thought this was a horror movie, buying you valuable time
6. you can have sex, but never ever in a car
8. look as modest as possible. killers are atracted to sexually arousing people (either definition of atracted is bad in this case)
9. don't be an ass, they always end up dead
10. don't do anything beyond the school, killers love extracurricular activities
11. don't babysit, especially on dark, stormy nights
12. if all else fails, activate the emergency tactic (the red button if you will) and show your dick
I read a book on this