What should you do to make a speech and outline?

After preparing your speech, outline important points of your speech on a sheet of paper. If you are presenting it in a PPT form don't let it say everything but just main points so the audience doesn't get distracted and concentrate on your PPT instead of what you are saying.

Rehearse your speech several times till you are comfortable with it. Instead of memorizing the speech rehearse so you can feel natural when speaking.