Most people often tends to get nervous during a public speaking, and that is quite natural and obvious, unless one is a gifted speaker and knows how to mould ideas into proper sentences.
Public Speaking is an art and that comes through personal experiences and practices.
I am going to share my experiences here that may probably going to help you as well. Remember my method may not be exactly applicable on you because everyone got their own expressing levels, knowledge and wisdom. So may be you could be better than anyone, unless you start. And the right time to do is now.
The first, step in the public speaking is to understand your audience.
Second, when you deliver you have to pitch your audience with either a question or a small action. This is most important to make them an active listener from a passive listener.
Third, your content should be in a simple and lucid language. Always remember that your audience do not have dictionary in their ears to find the meaning of your strong vocubalary. Unless you do not have an option of a simple word.
Fourth, whichever way you deliver your content according to what you have written before hand the audience do not know about it. So just keep on delivering. If you forget something. May be put a simple question to your audience to make your speech interactive. It meeans your speech has to be like you are not imposing your thoughts on your audience, but you are talking to them about your ideas.
Fifth, when are on the flow try to make eye contacts to few of your audience and randamly shift your gaze from one person to other. As if you are talking to each one of them present there. Never try to roll your eyes back when you forget something. It happens when you have less content then the given time. If your content is huge then the set time limit. You have lots of things to say. And if the speech is time bound try to wrap your speech just after the first warning bell.
If you have a good command of the language then no worries you can use your communication skills to talk to your audience and at the same time think of the ideas hitting in your mind which you could use to deliver the speech.
But if your language part is weak try to work on that. And before all these. Keep talk to yourself about the content your are going to deliver. Talking to yourself is the most important thing to be a public speaker. And also knowledge about a wide range of things is an asset. Reading stories is just another addition to your speaaking skills. If you don't read stories. Start now.
Ps. Excuse the typo mistake if any.