My alternative to the post-it system: high-fives<p>I teach a course introducing students to making plain webpages in HTML&#x2F;CSS&#x2F;JS. We haven&#x27;t tried the group aspect yet, instead we have people pair program - one laptop between every two students, with them switching &#x27;drivers&#x27; every 10 minutes or so, driver types while the other person narrates what&#x27;s to be done and points out typos etc.<p>When a pair reaches the goal for a particular task, I ask to high-five loudly. Not only does this help them get more comfortable with each other (they&#x27;re complete strangers and only come together for this single day course), but it livens up the room a bit while giving me feedback and without being too threatening to those who are still working.