Ключевые слова: academic, analyzing, attentive, beard, caucasian, concentrated, confident, conversation, discussing, engaged, experienced, expression, face, focused, front, furniture, glasses, indoors, intelligent, learning, lecturing, listening, man, mature, meeting, middle aged, modern, office, prepared, presenting, professional, seminar, serious, setting, smart, spectacles, standing, study, table, task, thinking, thoughtful, wooden, work, working, workplace,