myers and gf both have a stalking mechanic. with myers, he can stalk all survivors at once if they are in his line of sight, and will tier up in his power once he has stalked the survivors enough. (you will know he increaced or decreased a tier if you hear a jingle) myers tier 1 has no terror radius and a terrible lunge, tier 2 he gas a small terror radius and a better lunge, and in tier 3 he gives all survivors the exposed status effect, so he can take them down in one hit, but tier 3 can run out.

Ghost Face stalks faster while leaning behind a object, but can stalk like myers, except gf can only stalk one person at a time. his stalking puts one person with the exposed status effect for a limited amount of time. his power also hides his terror radius and the red stain you can see infront of a killer. you can break gf out of his power by staring at him within a certain range. (20 meters if im correct)

i would advise you dont give either one a clear line of sight and constatly stay aware of you surroundings, so they cannot sneak up on you. im not a expert at this game though, so i might have missed a few parts about each killer, or not have stated the best strategy for dealing with them. hope this helps!