I'm from Southern California, but:
1) I, like, totally don't talk like a Valley girl?
2) I DON'T SURF! (Sorry, that one comes up a lot)
3) I'm not blond
4) I don't walk down the street and see movie stars

That said, my brother does live in Hollywood and he saw Quentin Tarrantino in a record store once. I also enjoy swimming (which I can do all year round), and my brother is blond, though I'm quite brunette. And I can fake the Valley accent rather convincingly, though I like to think it's, like, not naturally how I talk, y'know?