Participatory workshops: You might want to suggest topics that are appropriate for the two minutes they are allowed to spend with each person. It was the 90 minutes immediately after lunch on the second day. Students typically remain in their partner-groups for about minutes before the instructor, who must keep time, notifies them to move on to their next partner. You can do this same setup with fewer or more people. If you have the luxury of chairs scattered around the room, you'll want to ask the people who were numbered one to sit at the table or in a chair.
Sitting at tables all over the room or just in two chairs is preferred, so the murmur of the conversations does not interfere with the participants' ability to hear.
Using Speed Dating Techniques to Enliven and Improve Conferences and Workshops