Ключевые слова: adult, advice, blackboard, business, businessman, casual clothing, caucasian ethnicity, chair, cheerful, classroom, communication, copy space, creativity, desk, development, education, entrepreneur, group of people, holding, indoors, learning, lecture hall, looking at camera, males, mature adult, men, motivation, occupation, office, presentation, professor, seminar, single word, sitting, smiling, standing, strategy, student, studying, success, support, table, teacher, teaching, teamwork, text, women, working, young adult,