TRAINING: Toastmasters International

Most Toastmasters meetings are comprised of approximately 20 people who meet weekly for an hour or two. Participants practice and learn skills by filling a meeting role, ranging from giving a prepared speech or an impromptu one to serving as timer, evaluator or grammarian.

There is no instructor; instead, each speech and meeting is critiqued by a member in a positive manner, focusing on what was done right and what could be improved.  (information found at toastmasters.org)