When I was teaching in the States, it was always fun to catch students writing notes. I never embarrassed them by reading the notes out loud to everyone else. Instead, I would quietly read it to myself, and put it in my desk. Usually they clued me in to some of the social dynamics going on in my classroom.
Today I nabbed a note from one of my students here. So, I've attached it! His handwriting isn't the best, so that's the first trick....but he certainly had a lot to say, didn't he?