I am lured in by a chalkboard in front of a wine shop: Every additional glass of wine is five quetzales cheaper than the last. Tabacos y Vinos does not have an English name, sure, but it is a quintessential gringo hangout in a town full of gringo hangouts. I meet a retired archeologist (now expat), a schoolteacher from New England, a group of law students doing a two-week program, a group of guys from Arkansas in seminary school learning Spanish, and the lady working that night. There is a local on duty in case someone comes in and needs to speak Spanish. It is less a bar than wine shop in setup, with a large square table surrounded by wine bottles shelved on the walls, so it is hard not to talk to people while hanging out there.
Antigua has a ridiculous amount of language schools and lures droves of English speakers to learn Spanish the best way: cultural immersion. The only problem is that finding someone willing to speak Spanish to you is harder to come by than someone willing, or able, to speak English.