I used to love to play dress-up, where you get your mother's or your grandmother's dresses and high heels.
I think it is more a cautiousness that protects me from enthusiasm about things. I tend not to get excited. People perceive it as a scowl, which is fair enough.
That's an interesting question. I would say that in general Americans know very little about the law. It's one of those things that most of us take for granted.