And...Accepted.

Yes! The Slang is very useful. If this answer is edited with some common word contractions, I'd happily accept it as a perfect answer.

Thanks for the insight. I'm still not quite catching on though, but yeah, I think I'm looking for more of slang than accents.

Wow. This have been very insightful. I'm practically a High Schooler writing my first novel, and I live in Indonesia. I was hoping I was able to publish it internationally somehow, since the market for English books here isn't actually that high.