Summary: An ability to split a speech to components and look at each of them separately makes you not only a better evaluator, but also a more experienced speaker. If you can see what other speakers do well and not so well in their speeches, you can easily see it in your own ones. Each time you prepare a new speech look at it from the evaluator's perspective. What did you do effectively? What could you have done better? Follow your own recommendations and your speech will be world-class even if you are giving it for the first time.