So we have established that:
85% of women get horny when they drink
77% of men get horny when they drink
So if you're looking to get laid, go for someone who's drinking.
Here's a tip:
To avoid the hangover stage, drink a glass of water between your drinks. It will keep you hydrated, and you'll wake up fresh as a daisy the next morning instead of with a furry tongue and a migraine.