Presentations

Jocular behavior and opinionated arguments were less effective than arguments solely based on fact and sources. In addition, large walls of text are not very effective. Instead of getting the audience to read the argument while listening to the presenter ramble on, the presenter should save the large wall of text for his oral presentation, This causes the argument to be more effective and helps the audience focus on one thing at a time.

Keep it simple! Elaborate themes and cluttered slides with little to no alignment or organization make the presentation look unofficial and unprofessional. Also, presenters should practice their arguments before they present them, because stuttering and drawing a blank makes the audience feel like the topic at hand is not very important to the presenter.
When a presenter appears passionate and knowledgeable about their topic and backs up their argument with valid sources, facts, and statistics, the argument being made becomes very effective.