What was positive about the interaction? As in, what went well? This could be anything, from your own teaching performance, to student engagement, to faculty buy-in.
What was negative about the interaction? As in, what did not go so well? Perhaps there were technical difficulties, or students were unresponsive during a discussion. Be kind to yourself here, the goal is growth not ridicule.
What is one thing you would like to improve or follow-up on? This could be an activity you want to revise, a new approach to a concept, or just finally reporting that one computer that always acts up.