The document discusses several group discussion techniques: huddle groups, buzz groups, role playing, and forums. Huddle groups involve dividing a large group into smaller groups of about 5 people to discuss an issue. Buzz groups are similar but typically involve groups of 12-15 people. Role playing allows participants to act out problem situations and discuss solutions. Forums involve experts discussing a topic while audience members can ask questions to clarify information. The techniques aim to increase participation and allow for deeper discussion than with a single large group.