Include only tricks that you are 100% safe in. The philosophy of a good performer is "Make easy tricks look hard, and make hard tricks look easy". Any trick like high throws, suns, elevator, around the leg/arm and such are good crowdpleasers. Suicides work great too if you're safe in them. If you can do 2d sprinklers, they are going to amaze them. As long as you include safe, spinny and flashy tricks you'll do fine. No need to include wild 3d siteswaps, since Mugglers won't notice how hard they are. Try to show your tricks to family members or friends and ask them if they look nice.
Build up your performance so that you start with easy and mild tricks, then go bigger and more flashy during your performance. That's a pretty safe way to do this.
-Tipper
