Ключевые слова: 20s, academic, attentively, attractive, campus, casual clothing, caucasian, cheerful, class, college, college student, concentrated, concentrating, cute, education, female, focused, girl, happy, higher education, indoors, knowledge, lecture, lecture hall, mixedrace, pretty, revising, school, serious, smiling, student, study, studying, taking notes, teenager, thoughtful, university, university student, woman, young adult,