Edith - One of the easiest, She's very slow at the time of this guide and can be avoided easily. If you see her standing still outside the room with the light on, She can turn them off, so either wait for her to turn it off, then turn it back on, or turn the light of then turn it back on again before she can.

The Scav - In my opinion, he is the easiest out of all the boo men. He has a set pattern, He only roams around the middle of paths, As long as you stay crouched or stood still out of his running pattern, You will be fine. Just make sure not to run or walk if you hear him, He's blind but has insane hearing. Chances are if you hear him, he hears YOU.

Ghost Girl - She can be known where she is easily by her crying and bones cracking. Never try to look at her directly, she will become more invisible the more you look at her directly. Try to avoid power outages as much as you can. She becomes faster than you and will always know your location in a power outage.

The Troll - He is the loudest of the boo men and can be heard from the other side of the building. He can only see you when your glow stick is on, making him very easy to avoid. Although, he has an ability that allows him to roar, which automatically turns your glow stick on, and has a 50% chance to blow out the lights (not a power outage)

The Mimic - The Mimic follows the rules of the dark, but can go in the light under 1 condition, It has to disguise as a human and turn off the lights to kill you. The Mimic can only kill you in the dark and can disguise as a human and turn off the lights. The Mimic can only turn off the lights when disguised. It is about the same speed as you disguised and undisguised, If you are playing with others, it is very easy to tell who is who, because The Mimic's A.I is very... Stupid. as it just walks around in the light and then it turns off the light.

Cynthia - Cynthia is probably the hardest in the entire game. She is a mannequin that can create clones of herself. They are completely identical. I'd recommend that you just avoid any mannequins, going too close to one will make them disperse, but the real Cynthia will only attack if you get near her. Excluding her clones, her decoys stay in the light, while the real Cynthia disappears in the light. Don't get confused, she is NOT a weeping angel despite looking like she would be.

Arnie - Arnie is 2 separate spirits in the game that roam around, One seeks, One Kills. Arnie's head roams around trying to spot you. If it does, break line of sight IMMEDIATELY
Arnie's Body will never see you unless the head can see you can the body is near, Once Arnie's head spots you moving, He will call his body to chase you and eventually kill you. You can sort of outrun the body. Arnie's head makes no noise at all while Arnie's body is very loud with the chainsaw.

The Scamper - Scamper is like the opposite of a weeping angel, He stalks one person and can only be seen by that specific person, Make sure to keep your head low when in the dark, He will only attack when you are looking at him, and keep your distance too. If you look at him while sneaking, he will run off, if you look at him stalking, its game over.