Ключевые слова: adult, adults, african, audience, beard, building, business, businessman, camera, casual, caucasian, classroom, closeup, clothing, confidence, education, eyeglasses, focus, foreground, glasses, group, hall, happiness, headshot, indoors, learning, lecture, lifestyles, looking, males, man, men, multiethnic, one, people, person, portrait, real, school, selective, sitting, smiling, student, studying, success, women, working, young,