Ключевые слова: advertising, banner, bar, board, broad, business, cafe, cafeteria, come, coronavirus, covid, covid19, customer, display, door, doorway, entrance, epidemic, front, glass, hanging, information, inn, mall, market, message, new normal, notice, office, open, opening, outbreak, owner, person, place, protection, restaurant, retail, service, shop, sign, signboard, social distance, store, symbol, welcome, wide, window, word,