One of the most effective things you can do when speaking in public is to focus on your audience.

Not only will they enjoy it more, but you will feel much more confident.

When you speak with your audience in mind, you make things relevant. Ask them questions, and your presentation becomes even more relevant. Refer to people in your audience to grab people's attention

Shifting your focus away from yourself will also help you to feel more confident and relaxed. All of the above tactics also create a greater sense of rapport.

The secret then, is to make your presentation relevant and interactive by externalising your focus.