You say, "Cafe natural." (Ka fay nah tur ahl) for clarification you might add, "Sin azucar tampoco leche." And get ready for a reaction from the barista. Not many people drink coffee "neat" in hispanic countries.
Tamales sirve con café sólo.
¿Puedo comprarte una tasa de café? or ¿Puedo comprarte un café?
You just go up to them and say..."May I please have a cup of coffee?"
Are you asking how do you say "coffee" in Spanish? The answer is cafe' Ca fay'
World cup in Spanish is "Copa mundial"
cafe
tener cafe
chashka kofe
cupán caife
tasse de café
café they speak spanish there
it's slang but you would say cafetear