Do something that draws the kids in so they will drag the parents over. We set up a cotton candy booth at our town fair and that worked well. Maybe you could have a simple craft that the kids would like. That way you could talk to the parents while the kids did their craft.
We are organizing a school information booth at a local Expo. We had some generic ideas from my marketing committee but I was wondering if anyone had anything creative to engage passerby's? We would love to stand out.