What happens next in this paragraph?

How to overcome your fear of public speaking
Realize the source of your fear.
In a nutshell, it is not knowing what will happen when you are in front of people, giving your speech or presentation. Your fear is not that you don't know your topic.
It is that you don't know what will happen when you step to the podium or table. The fear of being judged, making a mistake, not measuring up, getting hurt either mentally or physically can get in the way of a good performance (speech, seminar, sales presentation, etc).