Those who prepare and practice are more successful in presenting their information and anticipating audience reaction. As a presenter, you are trying to effectively communicate with your audience to get your message across. If you don't make eye contact with the members in your audience, they will not take you or your message seriously. The easiest way to turn off your audience is by not getting them involved in your presentation. Lack of Facial Expressions Don't be a zombie.
Effective speakers use facial expressions to help reinforce their messages.
There is nothing worse than a speaker who is glued to the floor. Be natural and don't stay in one place.