procedure to pair all people with all others in a group I am looking for an easy method to ensure that all people in a group get to meet all others. The "speed dating" method is to have two rows of people facing each other, and then rotate one of the rows. This works for half of the pairings. How do I get the remaining pairings to happen properly in a simple way?

This is what I was looking for, as mentioned in the comment by paw88789: Round Robin from Wikipedia. Put glue on the first seat and then have the two rows rotate around in a cycle. If there is an odd number, then I as the presenter can sit in to make an even number, or else whoever is on the end that round takes a "bye". Perfect, thank you! Now I can tell my mentor that there is an easy solution.
