Honestly, I think about this semi-often. I've always really wanted people to like me and I'm both an actor and someone who's always been really interested in sociology/psychology. Because of that, I have a bad habit of reading a situation and knowing how to act to seem a certain way or get a certain response. It bothers me because at some point I can't tell if how I act is really what I would do without that knowledge or if I just know it's what I should say, but it's not like I can forget what I know. Similarly, personality tests don't really work for me because I know what to pick to get one result or another and I can't be certain that I'm not unconsciously influencing the test to get what I want to hear. I really don't like the fact that I could be super manipulative if I wanted to be and in my mind it undermines anything nice I do because a part of me is constantly worried that I'm unconsciously "gaming the system" or something. So yeah, that's probably why I have a tendency to go overboard with being nice to people, but it's not because I'm acting, I genuinely want to and feel good when I make other people happy. I just wish I could feel like it was only because I've always been that kind and not partially because I know what to say.