Finally, we'll look at the giggles. The giggles result solely from your feelings of discomfort. It is another in my series of energy releases that are detrimental to your speech. To solve this dilemma, you simply have to concentrate. There are no two ways about it.
Concentration is the key.
Set your mind to your speech. If you can put your mind to your task, then you can deliver the speech without having to worry about the infamous giggles. If you can identify your problem, then you can solve it. Just follow the solution that I've laid out in the paper above, and you'll be on your way to eliminating the jitters.