I learned that when setting up for a craft show everything needs to be right on the table spread out so people can see everything and can pick it up and check it out.
I had a cute house me and the boys painted for a display but it didn't work since everyone was afraid to pick things out of it.
I also learned that I should make art magnets,and more monster face keychains. Custom is rocking! I mentioned that to a few people and I may have a few from one to make monster sets and keychains!
All in all,,,,,be polite and friendly if you can (it could be painful sometimes) and just chat it up!