Haha I'm not sure if you meant to do it but the list is just #1 repeated 3 times. Also, if its worth anything, I've had to do two big presentations to the VP of my company + about 30 other higher ups and I can't stress practicing enough. Practice your public speaking more times than you can remember, and know exactly where the problem parts are and how to effectively navigate through them. I probably drilled my public presentations at least 20 times a few weeks prior to giving them.