This is an interactive session in which we run a series of 3-4 demos, and the audience provides structured UX feedback. Demos can include prototypes, working websites and apps, or rough wireframes. The feedback is structured into three rounds: first impressions, positive feedback, and criticisms/constructive feedback. The structure allows us to fit in a lot of content in a short time, and gets everyone participating and practicing their UX skills.
For the last two years, I've helped organize a series of UX feedback events in Montreal which follow the same format (https://www.meetup.com/UX-Feedback).