Ключевые слова: 20s, 30s, 50s, academic, apron, attractive, auditorium, black, briefing, business, businessman, businesswoman, caucasian, challenge, chinese, colleague, communication, company, conference, conference center, convention, corporate, entrepreneur, executive, explaining, female, grilling, indian, information, knowledge, laptop, leadership, learning, lecture, lifestyle, listen, listening, male, man, mature adult, meal, meat, meeting, mid adult, participants, preparation, seminar, sitting, team, together, training, well dressed, woman, young adult,