Here's what I do
I come to your class room or office and tell my story of how I gained life changing confidence through practicing and learning effective Public Speaking. That takes about 5 minutes, and after that your students or employees do all the work! Pending the size of the group and time frame, everyone will have the opportunity to stand in front of their peers and speak publicly. Volunteers or Voluntolds come to the front of the room and must speak for 1-2 minutes about a random topic with no preparation. After they grind through the 1-2 minutes we break down how they did giving constructive criticism.
For high school and college students the speaking topics are mainly focused around common interview questions. This is a great opportunity for students to practice their interviewing skills and learn how to properly respond to questions and sell themselves during an interview.