If you want your favorite coffee shop to survive, don't be that person. Or if you must sit there and work all day, buy food or drinks more often. Remember: You aren't entitled to free Wi-Fi, you adorable tea-drinking freeloader, you!
Definitely don't ask for coffee you can only find at that one giant coffee chain
Instead of ordering a triple-shot, extra-whip, half-caf Caramel Frappuccino from a coffee shop that does not have a green lady mascot in it, try talking to the barista and telling them you want a cold and sweet java. They might surprise you with a similar drink you've never had and might like, such as a cold brew with house-made vanilla syrup!
And keep in mind that coffee is often different at Starbucks than it is at a third-wave shop -- even if it has the same name. A popular Starbucks macchiato comes in a Big Gulp-sized cup. But any shop serious about coffee will serve that same drink in a 7.5oz glass with a mark of milk. It's not your fault for being confused, Starbucks just has its own language.
Don't ask for an enormous cappuccino or latte
Matt Cronin, who's now a roaster at New Orleans' Mojo Coffee Roasters, was a barista for more than a decade. And he's been asked for everything under the sun, including a demand that he pour coffee into enormous cups many, many, many times. "We have certain sizing limitations on specific drinks -- lattes and cappuccinos are prescribed sizes because we have the ratios dialed in for the overall drink quality," he says. "So it's frustrating when someone accustomed to being able to order a 20oz cappuccino comes in and asks for it." He says he always wants to be accommodating, but not at the expense of pouring you hot garbage.