Music is always a good idea
Your host will almost always have taken care of having plenty of Zydeco or NOLA brass music on hand, but if you and your friends happen to have a folk trio going, or maybe you’re a talented guitar, fiddle player, accordionist, etc., don’t be afraid to bring your instrument. Late night, post-crawfish jam sessions are generally pretty fantastic in New Orleans, given the state of the local talent.
Extra chairs never hurt
Depending on the size of the boil and the crowd, you’re never guaranteed an actual seat. In fact, many times crawfish are consumed standing. But if you know that tricky knee is going to act up if you’ve been on your feet for a few hours, throw a couple of foldable festival chairs in your car before you head over. And bring a couple of extras, if you have them, just in case somebody wants a seat but can’t seem to find one.
Never use the “good” bathroom towels
These affairs are dirty as all get-out. If you don’t have crawfish juice running up to your elbows and spices and bits of shell underneath your fingernails, you’re absolutely doing it wrong. Which means that, like the table itself, you’re going to need some cleaning up as well. Begin this process with paper towels, which should be in abundance, and/or wet-naps if available. Do your best, THEN go to the bathroom to finish the job with soap and water, if you must, but don’t use your hosts decorative hand towels to get the job done. That’s just plain rude.