Somebody Agreed to a Phone Pitch?

I've been given an opportunity to pitch an editor over the phone. I'm finding that deciding what to say is even harder than deciding what to write in a query. Any pitch advice?

Don't overthink this. Do your homework: (1) thinking hard about the correct age range and appeal to consumers of your manuscript; (2) researching the publisher and thinking about why your manuscript is right for them. And then, while you are on the phone: smile. We can hear it in your voice. Be pleasant and not pushy. Offer us the manuscript, like a good hostess would offer a choice of beverages. Don't try to sell your manuscript, like a car salesman.

Bear in mind the three things we can get a sense of over the phone-- the topic, the appropriateness to age level, and what you're like as a human being. And bear in mind that those are important things, but they do not include the most important thing: how well you've written this manuscript.