Ключевые слова: 19, above, adults, africanamerican, back to school, caucasian, college, corona, coronavirus, corridor, covid, covid 19, covid19, distance, education, face mask, females, friends, friendship, greeting, group, hallway, illness, indoors, inside, learning, males, man, multiethnic, pandemic, people, prevention, protection, reopening, safe, school, standing, studying, top view, unity, university, virus, woman, young, youth,