It might feel funny, but make sure to Practice Your Presentation in front of a mirror. This will make it easier for you to determine if you are lacking crucial verbal and motor tics that will help to keep everyone focused on your presentation. Uncomfortably frequent blinking, licking your lips, grunting, head scratching, whistling, and yo-yo tricks are advanced techniques used by the “pros” to hold an audience’s attention. Deploy them and you’ll have the audience in the palm of your hand, but only figuratively, because your real hands will be very busy with the yo-yo.