Get a clear idea about the audience. Prepare your speech; it must contain specific information that is beneficial for them.
Gather information from various sources.
Select a good theme for your speech and write it down in a paper. Expand your theme with more subtopics .Try to prepare it in systematic way.
Give a powerful opening for your speech so you can easily draw the attention of your audience to your speech. Spend more time to create a powerful beginning.
Grasp their attention with well quoted sentences.
Keep your messages brief and simple.
Practice with audiovisual aids if you are using it. It helps you to use it effectively.
Explain your points but make them very brief. If the end is insight, the speech must move quickly.
Deliver your speech with dignity and grace
While you speech use some humor as it makes your audience active and energetic.
Make a clear eye contact with every one in order to make them feel all are equally important to you.
If you say some important thing, keep quite for a while before saying your point. It helps you to draw their attention to your speech. After giving the point, again you have to keep quite. It gives the audience time to understand your points.
Speak slowly and clearly. Think platform is yours and walk here and there while you deliver your speech.
While you give the speech pretend that you are very expert in giving speech. People sitting in front of you don't knows any information better than you. You are sharing more information with them.
As soon as you finish your speech don't leave the podium, wait few minutes for getting their opinions and queries.