Renga is an old form of Japanese poetry related to Chinese forms of short poems, predating even haiku.  It is a tool for socializing happily, as people sit together and write single two or three-line verses according to content prescribed by a formula.  The Renga Masters (Brendan Hewitt and Czandra) will choose from the verses produced, and link it with the next, and so on, for a total of 18 or 36 verses.

This form was used as a safe form for correspondence also:  one poet sends three lines to her friend, who responds in two lines, and back and forth.  Participants should be prepared to enjoy the exercise as a kind of game, but also need to observe the Asian formalism and respect it to some extent!