Ключевые слова: african american, answer, asian woman, black man, casual, caucasian man, caucasian woman, classmates, classroom, college, computer, copy space, desks, digital device, education, electronics, female, friends, friendship, gadget, gesture, gesturing, indoor, knowledge, learning, lecture, lesson, male, men, multicultural, multiethnic, people, place, question, raising hands, research, school, sign, students, study, studying, symbol, tablet, team, teammates, together, togetherness, university, young, youth,