If you find a creep doll or box of old tapes in the attic. Move. (Actually if it’s tapes, don’t move, you’ll die)
If you have a basement and hear weird sounds from it, move. Weird sounds include clapping, scratching etc.
If you feel something grab your leg in the middle of the night. Move.
That’s basically what horror movies have taught me. Don’t watch horror movies while living in a creepy house unless you are unafraid like Olivia (she has a really creepy house with a creepy doll in the attic and just creepiness)