This method involves the idea of a "perfect village" in order to find who is scum and who is not. Most people have such huge egos that they can only see themselves all game and spend all their time paying attention to only their own opinions. You can see through all of it and in doing so, will only be able to realize how bad most players really are. Here is how it works. Keep in mind that this is called the perfect village method and not called the perfect method.

Here are the rules to how to start a game

1. Get an understanding of what a perfect player is. A perfect player isn't going to call someone a scum bag if that person hasn't slipped yet. A perfect player isn't going to fos someone unless they are reaction testing. A perfect player who reaction test, isn't going to keep pushing on that person and turn the reaction test into a tunnel. A perfect player isn't going to just sheep. What you imagine as a perfect player is important to developing your own idea about what a perfect player is. At the end of the day, a perfect player isn't just what is in your mind, but, something real to use as a guide.
2. Pretend everyone is blue and aware of what the roles in the setup are and how they should react. This should give you a perfect idea about how people should be reacting when the only thing they know is what roles are in the setup and not who those roles are.
3. Get an understanding of what tunneling is and the difference between tunneling and reaction testing. What someone reaction test, get an idea of who they reaction tested and how many people they reaction tested. Who they reaction tested doesn't always matter. If that person tunnels and you know rule 2, then you know they are bussing or a bad villager. Pay attention to fos, the rate at which players send messages to each other, and things of that nature. Pay attention to omgus. The most important thing isn't to pay attention to just the person doing it, but, the reaction of the people watching.

Now you have an idea of what to look out for, you have the tools you are going to need in order to use my method. Take these tools and create inside your head, an idea called the perfect village. This idea is made of rules 1 and 2. Use rule 3 to see how the "perfect village" deviates. When it deviates, pay attention to the players reactions in the game. Other players will play different. New players will normally be more aggressive and likely easy to mistake for scum, but, being aggressive isn't always a scum tell unless they tunnel on a random person. People don't want to admit that they just guessed, but, its a part of the game.

Paint a picture in your head of the villagers in the game. You have villagers who aren't counter claiming and they will react different, picking one person or the other. Continue acting as the perfect villager as much as you can. You will notice that no matter what you do, sometimes people will fos you without any reason what so ever. Explain that they don't have a reason to fos you, but, don't omgus them until they start tunneling. If your partner starts tunneling you and you are mafia and they didn't warn you that they were going to tunnel, you pretty much just threw the game because now everyone knows both of you are mafia and anyone who doesn't is going to die during the next time society implements eugenics.

The best way to do this is by using a time line. As you continue to play ranked games, continue to click time stamp and study the distance between cc and how people react to that distance. If you keep doing this every game, you start to develop a massive sense of clairvoyance. Remember what you studied from your own game reviews and make sure you don't include people who threw the game, but, you can use them as a "side study" for references to the effect game throwers have on a village when you still have a chance to win or to better illuminate the fact that they game threw, to the admins.

Each game can be shown with a time line where someone omgus, reaction test, ccs, trust, or randomly tunnels someone without justification, and the reaction everyone had to that persons action. These deviates create "invisible variables" through their differences that show how everyone reacted. Mafia has a pattern, but, a good player should still appear to be a perfect villager. Sometimes players appear perfect when village, but, appear perfect too often when people end up saying something they should react to in a certain way. This is just as bad as slipping.

My method is more a do it yourself method, so all I did was give guidelines and not in depth detail about the most mlg strats such as reaction testing everyone by tunneling someone when everyone knows you are clear, then telling people to unvote after doing so.