I have been in a few BIG quilt shows on the west coast and usually you know who is judging. But if it is a local quilt show or fair, you may never know who judges your quilt. Usually, the first things that judges will judge you on is your binding, especially the corners should be square. Don't be surprised if they leave comments on you entry card. Don't take it personal. They don't know who you are. I have always reviewed what they have written and learned from my mistakes. GOOD LUCK !!