I think a better test would be what phrases you use. I don't order tea at a restaurant, I order "sweet tea". Took me several years of living in Arkansas to learn what "out of pocket" meant.
Says I have a western accent which is kind of crazy since I've only lived as far west as Colorado and then only for a few years.
I have two sets of speech. In a professional setting I can lose my accent completely. In a casual setting with family and/or friends my southern shows. It's not...