Ключевые слова: 30s, american, austrian, bag, baggage, carriage, casual, cellphone, city, commuter, commuting, confident, daily, european, german, inside, journey, lifestyle, line, man, metro, mobile, modern, one, online, passenger, person, portrait, public, ride, safety, service, smartphone, standing, subway, tourist, transit, transport, travel, travelling, trip, underground, urban, using, vehicle, work,