Jon decided that before he tries his power out he would try thinking up some things. Hmm... "You're better behaved." Something he was thinking for his younger brother, but he just said it to a wall. Maybe he could reverse Karyn's changes. "Your hair is reddish-brown."
But the next time Jon thought out loud it didn't go too well, because he didn't realize that the mirror down the hall would mean his statement would be taken as a truth about himself. And so he said...