Remember it takes 30+ minutes for the alcohol to hit your system. Especially if you have a stomach full of food.
What that means for drinking is stop early!! Stop way before you start to feel woozy, or you're in for a bad time. Especially if it's anything harder than beer.
Also, mixing alcohol and weed makes the effects a lot stronger. If you mix both heavily, don't be shocked if you feel like zonking out. Also don't do both heavily.