Sparkling water with a lime is a great go-to, just looks like any boring old G&T. Nobody even asks what you're drinking, in my experience, so you don't even hav

Sparkling water with a lime is a great go-to, just looks like any boring old G&T. Nobody even asks what you're drinking, in my experience, so you don't even have to lie to fit in. Hydrating, cheap, and tasty. When I'm someplace that doesn't have decent beer on tap (my preferred beverage), that's my go-to. I enjoy the idea that I'm paying ~$5 for a whole night of sparkling limes while others spend many multiples that on a night of crappy mixers.