I remember you! I only have a minute but I would NOT share a table with somebody else, because you want to be remembered in your tiny little town for who you are. For the next two weeks, make more earrings - don't try to reinvent the wheel, make the same as you have been making, it's no time to try out new designs. But then you should have enough, and at least all the other vendors will get to know who you are, and that's a good thing.
Remember to talk their ears off (customers, not other vendors). Yes, some of them will try to get away or will rudely walk away, but that's okay, turn to the next person and start talking. I usually say, "this is polymer clay! Do you know about polymer clay?" and proceed to give them a few bits of info while holding up a package of Premo in a bright color. They will usually listen for a minute, then start looking at what's on your table. Or, if you want to, sit and make a few really simple bulls eye or spiral canes when your table is slow. That really interests them. :)
I love doing shows! I don't do them as of late because of life drama, etc., but if I get a chance I'm wanting to do some toward the end of the year. They are fun and exhilarating.
Best of luck! Don't be terrified. :)