If you have a prize to give out and are looking for a fun thing to do that keeps listeners paying attention, play “The Short Term Memory Game”. Conduct a break (say, an interview around a topic). At the end of the break, launch the game and ask a question about something that was said. The correct caller with the right answer wins your prize and proves they were listening closely to what you were doing. Thanks to The Big Dave Show, B105, Cincinnati for this idea.