A good presenter always stands at the same wave-length with his audience. He catches their mindset in the first few seconds of his presentation. Smarter ones catch them even before the start of the presentation by reading into their body-language. There may be few tricks to learn them in order to wrap your topic with their strength of logical intellect:
Learning from the audience how and how far they can learn, is the best way to carve your presentation. You must be astute enough to shape its contents and their course during the presentation as well. Getting into the perspective of the audience first and then changing it to yours subtly, is what matters.