At Craft Fairs, after your booth is set up, walk down and around another isle and observe booths that attract your attention. Don't look at what they are selling, rather how the display looks to you as a customer. As you approach your booth, try to see it as a customer. Things to consider; color and openness (welcomes browsing), extra stock stacked in the back rather than on or under a table (too much to look at). Also consider moving a few things around in the afternoon, items previously overlooked might get someone's attention. If the customer doesn't see something to attract them in 5 seconds, they walk on by.