Begin by locating and reviewing at least one video about Do's and Don'ts of PowerPoint (the subject "Death by PowerPoint" will bring up some of the more amusing ones). Does the presenter's advice seem good to you? Are the examples useful? Then, think of at least one time when you have delivered OR watched another person deliver a speech supported by visual aids -- either actual, physical aids or PowerPoint slides. Got it? You're ready to start the discussion.