Ключевые слова: academic, adult, asian, attractive, back, casual, classroom, college, communication, education, explaining, eyeglasses, fellowstudents, female, focus, foreground, gesture, gesturing, highschool, lecture, lecturer, lesson, lifestyle, lovely, male, man, mature, midaged, middleaged, people, person, posing, pupils, rear, school, selective, sitting, smiling, standing, student, students, suit, teacher, tutor, uni, vietnamese, view, welldressed, woman, young,