There's also some fun tico slang. "Choza de la momia," which literally means "mummy hut," is slang for the house of the girl you're going out with. Choza is all purpose slang here for house. And momia sounds like "novia," meaning girlfriend. It may also be (not sure I heard this right), that a mummy is a monster, and at times girlfriends can be too.
And now, some new spanish vocabulary:
tiquismos - expressions unique to costa rica
retroalimentación/realimentación - feedback
hipoteca - mortgage
vid - vine
viñedo - vineyard
catar - to taste
catación - tasting
arbitraje - arbitration
maletas - suitcases; muletas - crutches
principio - beginning (as in, a principios de, o al principio)
sin fines de lucro - nonprofit
expectativa - expectation