The concept of siesta is alive and well. Most shops (except El Corte Ingles) will close each day from 2 to 5 p.m. to allow the staff a long, proper Spanish lunch and rest. Europe in general is more chic than the States; dress appropriately and you'll have an easier time blending in. Spain has a low level of English relative to Europe, so bring that phrasebook or app to facilitate conversations; after all, the best places don’t have English signage! Most of all, “Disfruta la vida Española”—enjoy the Spanish life!