Well, it depends what you're writing. One of the horrible things about early fiction is that the writers usually insert their own interpretations of how charact

Well, it depends what you're writing. One of the horrible things about early fiction is that the writers usually insert their own interpretations of how characters talk -- including stuttering and "ums" and whatnot. Thankfully much of this is wasted on fanfic, where you know what the author was trying to emulate -- but usually it's a distraction. Great characters can get by without habits written into their dialogue.