I created this one page document when I had my Roadster:
Roadster FAQ - Google Drive
And I updated it for the Model S:
Model S FAQ - Google Drive
So far, I've shown the Model S twice, at a local "bring what you drive" car show and at an Earth Day event at a local community college. I spent the day opening and closing doors and trunks. The handles sure do attract a lot of comments! One person asked me what would happen if someone's hand was in the handle as it retracted: I wasn't sure, so I tried it. It feels like the motor moves a piece out from behind the handle and a spring then pulls the handle in. It's not dangerous at all...
I did manage to trick a few "car guy" types by offering to show what's under the hood ;-) Imagine their surprise when I opened the Frunk! All the other EVs present that day (conversions, LEAF, Focus and Think) had "something" under the hood... Despite the picture on my flyer,people kept asking for the location of the battery and motor.
I also had some fun making people guess where the charge port is. I forgot to bring my charge cable as I wanted to demonstrate how one can open the charge port by pressing the button on the cable's handle... Next time!
I let some people seat in the car, but asked them to not touch the controls.
When talking to people who had never heard of Tesla, I made a point of stressing the fact that the Model S is built locally.
When asked, I told them the price before incentives. It's not like it's a secret: anyone can go on TM's website and price a car.