If he's in a кислый mood, some type of whiskey. горький and strong. Can be mixed with other drinks или just poured over the rocks.
If he's in a flirty, happy mood, I think he's like some еще "fruity" drinks. Just enough alcohol to get buzzed, but not enough to really taste или get drunk off of.
And the rest, I think he'd enjoy a nice, hot, strong (and heavily sugared) coffee XD