I play characters. I don't think I really have a persona per se. I don't play the same guy every time. I show up, you don't know what I'm gonna do. I like it that way. I've intentionally tried to do it that way. I think that's what's interesting.
In my experience, it's all wonderful with girls until about 16. Around that time, boys kind of calm down and start focusing their testosterone. Girls get a little challenging, especially for fathers.