Usually, in Mafia, players deliberately contort and manipulate their own behaviors in order to be effective in each different situation. Some advanced players are attempting to turn it into a science. In a broader sense I find Mafia to be a game of human dynamics. It's how Bob, Sarah, Jack, Amy, and Fred talk about which one of them should die, because one of them aren't who they say they are. Now, if I'm a generic monster from
Supernatural, and I've eviscerated Fred and assumed his identity, I'm not going to make your job easy.
In general my gameplay is violently explosive and like a waterfall crashing down, especially as a VT. However, that's not always good if you're meaning to survive.
As the monster wearing Fred's skin, I'm not going to make it easy for you. No, not at all. I will actively and subtly seek to put seeds of doubt and paranoia among you. This isn't a physical game, so I can't just transform into a Leviathan and maul everyone to death. No... it's a game of wit. I needdependon you all being divided in order for me to survive. I also need to blend in and, more importantly, have your trust and have some sort of influence on you. Nothing scares me more than a Town that's working together as a team.
I'll start by making a simple, harmless... joke. Who doesn't like jokes, or charm? Psychology probably says something about the effects of charm and humor on the psyche... too. Holding back to let others talk first, I'll quietly wait for some sort of an opening in which I can stick a claw or two in, while slowly pulling apart at the edges. Question Bob and Amy tactfully, and briefly, checking reactions and looking for new opportunities. If you can sow suspicion amongst them, go for it. Then after I have that little ember and smoke going, fan it a bit, and hope tension and division occurs. Then ask others about the situation, gauging their reactions, too. Then when Amy gets lynched, have a Bob-e-cue at Night, and... then... three left.
...well, you get the picture.
It's all about tactics.