1. A speech. Each student was alone and they had to choose from a variety of topics I gave them, such as "family" or "hobby." I think they had to speak for 1.5-2 minutes, without a paper. This was kind of boring for the audience and I only did it once.
2. A discussion/presentation. The group had to give a presentation about a topic of their choosing and think of at least 5 interesting questions/surveys/activities that groups could discuss or do for about 30 minutes after their presentation. This had varying results, since some groups chose a topic that led to a lot of "yes/no" answers and discussions that lasted about 2 minutes. This could be avoided by approving the topics in advance and requiring groups to submit their assignment for feedback a week before the actual presentation.
3. A poster/presentation. Each group had to choose a current issue (like environmental pollution, celebrity suicide, North Korea) and make a poster that had English writing +pictures. Then, they had to do a presentation based on the poster where each group member spoke for 2 minutes, without a paper. If I ever did this again, I would do something where the audience was more involved, such as peer grading.
4. A Powerpoint presentation on a topic of the group's choosing. This has the potential to be very interesting, or PPT death. It all depends on how you set it up. I didn't set it up very well the only time I did it and the results weren't great.