I can think of a few:
-I pick at my nails constantly. Even my fake ones. I have also been known to bite (horrible!)
-I procrastinate. A lot. I will know I have a paper due in three weeks, but yet I will still only be starting it the weekend before. I have always been like this. I have come to the conclusion that I work better under pressure, so I just go with it.
-C has pointed out in the last week that I was the word 'like' constantly. I will be telling a story and repeat a conversation by saying "then I was like" "then she was like" and so on. This is another thing that I have done for years, I don't even notice it anymore, and I can't help it.
Hope everyone is having a great weekend!