Ключевые слова: adult, baggage, business, city, commuter, commuting, corona, coronavirus, covid, covid19, distance, distancing, empty, face, hat, health, holding, holidays, immunity, luggage, man, mask, outbreak, pandemic, person, platform, protection, protective, quarantine, rule, safe, safety, space, student, summer, sunglasses, time, town, train, travel, traveler, traveling, traveller, trolley, vaccine, virus, waiting, watching, wearing, wheeled,