(A couple comes in, and it is immediately obvious that English is not their first language. They point to the menu and state a couple of things, but it seems they want to order something specific.)

Male Customer: “I… uh…” *makes drinking motion*

Me: “Drink, yes. Coffee? Tea?”

Female Customer: “Coffee! Yes!”

Male Customer: “And… uh…”

(He is looking increasingly frustrated, and I want to find a way to reassure him. I notice he is wearing a Star Trek shirt, and the wife has a Starfleet insignia necklace, so I assume these two are not just passing fans.)

Me: “Raktajino?”

(They both pause, smile, and nod vigorously. I give them the Vulcan salute, and we manage to get their order together with less stress and more laughing. They wanted a mocha and a salad. After they are seated my coworker comes over.)

Coworker: “What did you say to them?”

Me: “‘Coffee’ in Klingon.”