Don't ask why I was surfing around the PBS site, but I found this show called Do You Speak American? What caught my eye was this page about California English.
Honestly, I didn't think Californians had an accent like people do in New England or in the South, but clearly I am wrong. I can't tell you how many times I say "I'm like...and then he was like..." or "I was all...and he was all..." Of course, that's usually when I'm in a social situation. There is no way I would be taken seriously at work if I spoke that way.
By the way, if you want to tell the difference between someone from Northern California and Southern California, see if they use or have ever used the word "hella". That's definitely a NorCal word.
I'm confused though. If cot and caught or hock and hawk don't sound the same, how should they sound? Aren't they homonyms?