I will elaborate on this story later, as I have people waiting on me, but I will give you an example of one of my favorite games. Kuro can back me up on the details.
I started the game as a civilian, and was ID'd in the second round, which was pretty normal on this forum since people knew what I was capable of. One of the mafia members then used an ability which removed them from the game, but it also turned me into a mafia member. I believe the detective was killed by the mafia that same night, and Kuro was the other player he had ID'd. The mafia knew they had killed the doctor, so I told Kuro I was the doctor and our alliance lasted until I died. I died when I got too aggressive in the lynch phase and the person we lynched took me with him out of spite. This put us in a tough spot, as there were just enough civs left and suspicion was on the last two mafia members. One civ in the game had an ability that allowed them to win as long as they were alive at the end of the game. I suggested to the other mafia members that they contact her and offer a truce: she votes with us and we will make sure she stays alive and gets to win also. She accepted and both mafia and she won the game.
As far as my personality, I try to play a little differently from game to game. I would just suggest going through my post history and searching for my posts in mafia threads. Or have other veteran members vouch for me.