Honestly, I've never participated in the running of a fair. I've been to a few, especially when I lived in Ohio, but I work at a camp over the summer, and as a result I don't end up getting out to do much outside of camp... including participating in a fair.
But recently I've thought about competing in crochet contests or other things. My crochet is coming along quite well, and while I have no illusions over the fact that my crochet isn't perfect, it is a part of my life that I want to expand and explore more. I'm beginning to realize there's a whole craftworld that I want to explore more, and part of that is challenging myself. Entering in contests might be a good way to start, though I have no clue how to go about doing something like that.