Vacations say a lot about people. For one thing, where people choose to go indicates how much they like to be around others. In new work in the Journal of Research in Personality, psychologists from the University of Virginia quizzed college students about their geographical preferences and found that introverts prefer the mountains while extroverts prefer the ocean. The researchers found more evidence for this when they looked at who actually lives where: Residents of especially mountainous states were more introverted on average than their counterparts who live in flatter places.