I've noticed that in everything I write, one of the main characters takes up at least one, usually many, of my quirks. My silliness, my eating habits, singing in my head, etc. all go to the p.o.v. or another prominent character (and sometimes divided between them). I get plenty of things from friends and people I've met as well, but when it's my personal quirks... it's a little odd. I ask myself: Am I really that self-centered? I could be... My question to you is: are you your main characters, too? What are your traits or quirks they tend to take on?