Knowing that you know will help you feel calmer. Imagine speaking clearly, confidently and enjoying yourself as you speak to the audience. Apologizing for being nervous will just draw more attention to how you re uncomfortable, which just might make you more uncomfortable. Your nervous feelings will dissipate if you focus your attention away from your anxieties and concentrate on your message and your audience, not yourself. Harness and transform it into vitality and enthusiasm.
Experience builds confidence, which is the key to effective speaking.
Most beginning speakers find their anxieties decrease after each speech they give. Expect your self to be nervous. Expect that some audience members will act spaced-out. Decide to like public speaking . Hating what you are doing puts you in conflict with yourself.