In what circumstances does or would your character drink alcohol? (e.g. "with a meal, for fun, when depressed, at any excuse, NEVER EVER") Hmm... Possibly when there's nothing better to do, or if he's out with some Akatsuki people. He's pretty obsessed with his art, so I doubt he goes out drinking just to be social.
How much would they normally consume? Do they get drunk every once in a while, or live and breathe alcohol, or make sure to stay under the legal limit? I'm guessing if he goes out to drink at all he'll probably want to get a little drunk - just enough to make everything a little more fun, but not enough to knock him out.
How much alcohol tolerance do they have? Does even a sniff of alcohol knock them over, or can they guzzle alcohol without feeling impaired? Eh... a decent tolerance, maybe. Probably closer to lightweight than not.
What kind of drunk is your character? How would they act if they were drunk? Either grumpy, or very vocal about... his art, probably. I'm sure he'd rant a lot - to no specific person, just anyone nearby.
Who would they go drinking with if they had to choose drinking buddies? I honestly have no idea.
What's their alcohol preferences? Beer, wine, mixed drinks with fancy names? Don't think he'd have one. Something typical, maybe, like sake or beer.
Green alcohol y/n? No.
Your character is completely drunk. Who do they drunk-dial, and what do they say? Hahaha... Itachi or Sasuke, obviously. Most likely Itachi, and either Uchiha could just set the phone aside for a while as he went on about how badly he was going to destroy them.