Ключевые слова: 20s, 30s, academic, arms crossed, attention, attentive, book, books, buzzword, casual, casuals, caucasian, class, classmates, classy, college, concentration, cooperation, copy space, desk, education, educator, elegant, eye glasses, female, focused, glasses, hands folded, handsome, indian, information, institute, job, knowledge, learn, learning, lecture, lecture hall, lesson, lessons, looking at camera, male, man, mid adult, mixedrace, school, seminar, single word, sitting, smart, sophisticated, students, study, studying, stylish, suit, table, teacher, teaching, text, university, well dressed, woman, young adult,