As I'm writing dialog, I'm starting to use more slang words. The thing I've thought half way through this is whether it's bad, or does it help to bring out the character in who says it? In real life, it's not like we always use slang or make grammar mistakes while talking, but in a story, what does it come off as?
Does it make the writer look lazy, unprofessional, or sloppy, or does it help to bring out the character's personality?
I've come to the self-conclusion that it's okay, as long is it's not overboard, but as I'm writing I'm tending to use a lot of it. So I guess my second question is: How much is too much?