Want special sides? It’s on you.
If you want something other than what’s going into the pot -- like, say, that great salad you make with butter lettuce, avocado, and hearts of palm, or even just coleslaw or chips -- don’t expect it to be there unless you bring it yourself. Speaking of which, everybody who’s worth knowing will appreciate a couple bags of Zapp's. (Be worth knowing.)
Do NOT encroach
If you failed to get enough craws on your first go, or just peeled and ate them faster than everyone else, and your neighbor still has a big, hot pile, resist every urge to start eating from their share. Very, very not cool, man. If they look like they’re lagging, though, you can always politely ask if you can help them out. They can always say no, but don’t just dig in there like it’s your damned birthright.
Suck the heads!
As it is with ramen in Japanese culture, slurping is both accepted and encouraged. This is not a black tie affair... it’s a crawfish boil. Anything more dressy than T-shirts, shorts, jeans, sneakers, and flip-flops would be considered anathema (more on that below), and people go about the wonderful business of crawfish eating in audibly apparent glee. Which of course means sucking the boiling liquid and that magnificent yellow crawfish fat out of the “head,” which is, technically speaking, both the head and the thorax section of the animal. Wanna scoop that goop out with a finger? Go for it!