How to Survive in a Slasher Movie

i suppose the idea there is its coming down to survival. Butut but on a psychological level. Like, how do you tell which character is the creepy killer? Kind of coming back to our tales from the crypt episode,. Is it adam ant? Is it his character is acting creepy? Am i able to psychologically analyze him in a way where i can guess that he's the killer? or is it clarence williams the third? Or is it salome jenns? Yes. I know better. By the way, f that vicary and fraley a paper, they also point out that t neither female nor male subjects were drawn ys with explicitly emotional or sexual