The main reason why we get nervous is that we don't anticipate and prepare for the occasion and the content of the speech.
Happiness is contagious and so is stress
You can have a window in your relationship, why can't you have a Gap in your resume?
According to McKinsey, people usually remember one, two, three, but not four, five, six, so everything should be summarized in less than three. This is now widely circulated in the business world "30 seconds elevator theory" or "elevator speech".