1. The number one protection against nervousness is knowing your subject cold. Be over-prepared and you'll automatically feel better about your presentation.
2. Talk to one person at a time. Literally, look directly into the eyes of one listener at a time, just as you normally do in one-on-one conversation. This will be difficult at first if you're used to scanning or avoiding eye contact, but it's worth the effort to acquire this basic habit of effective speech.
3. Stand up straight. Correct posture will make it easier for you to breathe properly which will in turn make it easier to get your words out naturally.
4. Don't rely on alcohol or drugs to calm your nerves. The result may be slowed reaction time, slurred speech and hazy memory.
5. Know exactly what your opening line is going to be. Knowing your opening statement will reduce worry about getting started, the most bothersome time for most speakers.
6. Just before you get up to speak, say to yourself: "I know what I'm going to say and I'm glad for this chance to say it.". Keeping Audience Attention