Here's a quick tip to make your audience more receptive to your presentation: use their names in your talk!
Last week at my networking group meeting, one of the speakers managed to mention five or six people in the room as he went through his ten-minute presentation. Whether it was to illustrate a point, to make an example, or to create an analogy, he managed to find ways to incorporate people's names and businesses into the presentation in a smooth, seamless way.
His lighthearted approach also added some humor to the presentation, as his main point was that he was not going to talk about his business while, of course, talking about his business, and plugging other businesses in the process.
If you think you can't incorporate your audience members because you don't know them, that's all the more reason to get to your venue early and greet people as they arrive. Find out what they're interested in and why they've come to the presentation, and then mention these conversations throughout your talk.
It helps to increase your connection with the people in the room, and it's a great way to personalize your talk so you don't sound canned or generic.