What is your main personal goal? If your thesis statement is narrow, then your speech will be focused for your audience. Give some background information.
Where you are from? Check page in your text to see how symbols are used in an outline. Here is an example of a self-introduction speech: "Hello, everyone. Do not take the opportunity to brag, joke excessively, or to register complaints!
A good thesis will help keep the rest of your speech focused.