Prepare an Organized Speech
The purpose is to make others believe you are well prepared and interested in what you are giving a speech about. Your speech will be more effective this way, and it will be easier for the audience to understand.
Advice & tips
Think thoroughly about your topic and think about what you can talk about days before your actual speech. Write down your thoughts and ideas. Organize these notes in an order that makes sense, and that will make sense to other people. When giving the speech you will be able to relax a bit more because you will already know what to say.