I CAN'T STAND the overuse of the terms "I/She/He was like...." instead of "I/She/He said....". Its definitely a figure of speech that seems to be widely used in the west of Scotland.
I do this way too much. I get annoyed with myself when I catch it, but I haven't been able to break the habit. But that's definitely an American export, that phrase.
The one that annoys me? "Sure". I absolutely hate that word...as a response to a question, anyway. To me, it just sounds like, "I don't really care enough to formulate a real response, but I know I have to say something so you don't keep pestering me". Or, "I know you don't want to hear 'no', and I don't really want to say 'yes', but to avoid a disagreement, this is the compromise."
Yeah, I read a lot into it, I know. But it always just sounds so distant, impersonal and non-committal.