Well, nice to meet you.
One suggestion, I really don't feel [that it is] good to use too much abbeviations such as doin', ur, u, cuz, dont, and especially yo and dude. Those words bring up [an] image of some big black guy, those who are not well educated, uncivilized....or at least rude. Yes, [their manners] are pretty [relaxed], but not really [acceptable] in all cases.
When you're familiar with someone, maybe it's OK for you to call each other DUDE. While here when you meet people for the first time, I don't think [that] it's a good word to say. And YO, this word is mostly heard in those RAP songs, which are actually defiant.
So please, please, choose some better words.
I'm not [racist]. Definitely not. I used the word "some", please pay attention. Some of them, are really like what I've described, I've met those kind of guys. While of course, some don't. I myself have 2 black friends, they are really nice.
[no, dude, "some" is just a casual way of nominating a group of people. i think you meant to say "some of the black guys" not "some black guy"]
I'm not really uptight. I just don't feel [comfortable with] some of your words. When you're having fun, shouldn't you also think about other people here?