Essentially, I'm untrained, so I just go with my imagination and try to put myself as solidly as I can into the shoes of whatever person I'm going to be playing.

Considering he was neither priest nor scholar, the young man gave sensible, thoughtful replies -- the more so, perhaps, for being untrained, for he had not learned what he should believe or should not believe. Present a statement to him in flagrant contradiction to all Christian doctrine and he could be persuaded to agree on its good sense, unless he remembered it was the sort of thing of which pyres are made for the incautious.

Essentially I'm untrained so I just go with my imagination and try to put myself as solidly as I can into the shoes of whatever person I'm going to be playing.