Ключевые слова: 20s, academic, background, book, books, caucasian, class, classmates, college, concentrate, concentration, desk, education, educational, female, folder, group, happy, holding, homework, indoors, institute, institution, intelligence, intelligent, knowledge, learn, learning, lecture, lecture hall, looking, looking down, male, man, paper, pen, sitting, smart, smile, smiling, student, students, study, studying, taking notes, textbook, university, woman, writing, young adult,