This is a question that students ask themselves only when it comes to the presentation itself. They should prepare the procedure itself much earlier. It's like sitting on the ground thinking that the raindrops won't fall on you. The mechanism works here, the sooner you learn all the basics of freedom speech, the sooner you will be ready for big speeches. It's good when you can learn everything in the material here www.tutorialchip.com/articles/freedom-of-speech-what-a-student-should-know/ but how many students have something like this at their fingertips. Only a few, which means you need to help others learn about it.