He doesn't interact with people if they are not in the Vatican, he just appears to be a good priest and if you want to talk to him, he will only answer everything that is related to religion or philosophy; an way to hide his own identity. As a priest, he is pure, kind, of few words, helpful, noble, loyal and organized. Like Devil, he is greedy, bloodthirsty, self-centered, sensual, selfless, and manipulative.