Ok, so i get what u guys mean.
I would do the speech like what Nino says.
First i'll talk about Presentation, and after some elaboration, i'll perform ThunderBird to show the way of presenting 4 Aces in your style.
Next, i'll talk about Sleight Of hand, the most important thing in magic, and i'll just simply do a riffle force to sthrengthen my main idea.
And i'll talk about Imagination, and do Pressure.
Last, i'll just talk a little about myself and how does magic effect me and people around me in my life.
How u guys tthink?
This would take too long. I would suggest once you choose your topic, to pick one effect to compliment what you are speaking on, but make sure it really fits and compliments.