Good luck at the show! Try not to worry.
Generally most people who attend try to not touch the car and just look.
I had signs made for me at the last show I went to ... They are cute:
I put it in my engine bay ... I also had a miniature model of my car sitting on top of the engine cover (at multiple shows) and no one ever touched it.
Best of luck, and have lots of fun
Oh and take lots of pics
