Ключевые слова: 20s, attentively, business, businessman, caucasian, chalkboard, classroom, classy, computer graphic, concentrated, concentrating, copy space, digital, digitally generated, education, elegant, focused, green, handsome, hipster, jacket, looking up, male, man, professional, school, serious, shirt, smart, sophisticated, stylish, suit, thoughtful, tie, well dressed, young adult,