You'll need to practise your presentation once you've planned it out. Avoid memorising your lines, despite the fact that you might think it's the best way to have a flawless presentation.
Although that may sound like terrible advise, think about these factors:
If you memorise your speech, you'll become set in the notion that you can only express your opinions in that way, which stifles creativity and the chance for original ideas and ways to frame things that occur to you while you speak.
Every audience is different, too. When you play live, you never know what kind of audience you'll have—sometimes they'll laugh out loud, other times they'll just grin and sit there.
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