How not to be a dick at an art fair

It's really not that hard. There's only one step.

So, you’re downtown in the blazing sun with hundreds of people around you, walking slowly through an arts and crafts fair. People are bumping into you. You’ve been there. The food trucks are at the other end of the promenade, emitting smells of gyros and pretzels with salt the size of diamonds. Firefighters hand out neon pencils to the children who are …