If you’re moving to a city in a different country, you might need to learn new apps, new food brands, and even a new language. “When you’re moving, especially if you’re moving as a single person, it’s often a time of loneliness,” Dr. Marisa J. Franco, a psychologist and friendship expert, says. Ruth Sangree, a law student who recently moved from New York to Seoul, South Korea, suggests using Facebook groups to research popular apps in the city you’re moving to if you’re heading overseas. Take long, aimless walks — through your neighborhood, through the neighboring neighborhood, through the neighborhood next to that, and all through the city, if you’ve got comfy shoes and feel so inclined. “It’ll make your surroundings feel familiar and help you get a sense of the neighborhood vibe,” Mira Fox, a journalist who moved from Boston to New York City in November 2019, writes in an email.