The fourth step to using humor in a presentation is to practice and test it before you deliver it. Humor can be tricky to pull off, especially if you're not a natural comedian or storyteller. You need to consider not only the content of your jokes, but also the delivery, the timing, the tone, and the body language. To improve your humor skills, practice your presentation in front of a mirror, a recorder, or a friend. Pay attention to your voice, your facial expressions, and your gestures. Try to sound confident, enthusiastic, and authentic. Also, test your humor on a small and diverse group of people who can give you honest and constructive feedback. Ask them if they found your jokes funny, appropriate, and clear. Then, adjust your humor accordingly based on their responses.