Develop an outline of the main points you want to cover in your speech and what supporting information you will give. Include information that backs up your reasons. Keep your reasons and evidence short and to the point. To get ideas for your speech topic, think about terms you can define, ideas you can compare and contrast, situations you can assess or circumstances you can analyze.
You can also tell funny stories from your childhood, talk about your most embarrassing moment, tell why you chose your current job or discuss why you hate Brussels sprouts. Stories can be short and sweet, but they can also become long if you give too many side details or go off on another story before you have finished your first.
Explain how to do something quickly in your speech or give your opinion on a topic. You might also briefly inform your audience on a topic they may know little about. Think of hobbies you have or tricks, such as card tricks or magic tricks, you can teach others quickly.
Opinions are simple quick speeches to give. Almost any topic will work. For example, talk about the negative effects of single-parent families. Your main points could be that finances are tight, which causes stress for children, or that the child is caught in the middle of custody battles and that he may develop separation anxiety. You might also talk for a minute about the idea that wind turbines take up too much land area, stating that a conventional power plant uses many fewer acres, that one one wind turbine has a safety zone around it larger than a conventional power plant and that the roads to service the turbines, lines to distribute electricity and transformer stations use even more land area. Another idea is to read headlines and articles in your local paper and talk about how you feel about the information you read.
Speak briefly about how to improve your community by offering different methods in your speech. Or, give an informative speech about a topic, such as how ice can cause plane crashes. Cite your sources briefly in your speech by saying, "According to. . .," or "A 2011 Association report found that. . ." to give credibility to your speech's information.