1. Lay out one or more sets of Dialoogle Magnum cards on the floor. Use one set for every 15 students.
2. Ask the students to think of the experience that has made the greatest impression on them during their stay. Then ask them to choose an image each that reminds them of that particular experience.
3. Divide the students into smaller groups of four to seven and give them no more than two minutes each to tell the other group members about their experience.
4. When all have told the others about their experience, ask the students to form new groups and tell their story once more.
5. Form new groups a third time and repeat. You may need to make sure that no one is grouped with the same people more than once.
6. By now the students have heard 12-21 stories in less than an hour and have a good idea of the most significant experiences of the other students. Ask the students to place a hand on the shoulder of a student who told a story that they found particularly touching.
7. When all students have done so, choose the three or four students who have the most hands on their shoulder, and ask them to tell their stories in plenum.

Photograph or record the exercise on video, so that you can come back to the exercise at a later time.