The One Who Finishes Your Sentences
This friend is practically a mind reader. She can sense what you're going to say, and she's so helpful that she just can't resist jumping in and ending your story for you, even if she's never heard it before. Only that's not the whole story. Her vigorous nodding and thought-finishing are really just tools for what she's actually—albeit often subconsciously—trying to do: hijack the conversation. She's just speeding you up until it's her chance to talk. It makes you wonder if she's looking for a friend, or an audience.