How to prank a friend with a personality change?

Here is four words that she put my personality as annoying funny childlish ( in a good way ) gentlemen..



I won't change the gentlemen part but I would like to fix the annoying and childish part even though its a good childish way I don't want it. What personality traits do you believe are the opposite of most of these and she would have to notice something is different?How to prank a friend with a personality change?
social, talkative, curious - for the annoying and playful, outgoing - for the childish