Don't set it and forget it
Smoker tech has taken much of the guesswork out of cooking, but the human element is what takes barbecue from good to great. There's no hard-and-fast rule to how to cook low and slow in terms of gas, wood, or charcoal. No matter the method, you must fan those flames with love.
Don't compare your meal to other restaurants while eating
Most barbecue fiends have a personal ranking of favorites, but keep your mouth closed when you're chewing. That chopped pork might not square up to the Skylight Inn's, but don't spoil everyone's experience by spitting out your opinions.