Ключевые слова: 10th, adult, aged, attendance, attention, attentive, audience, auditorium, back, background, business, businessman, businesspeople, businesswoman, caucasian, conference, congress, convention, education, elderly, forum, heads, indoors, learn, lecture, line, listeners, male, man, mature, meeting, meetings, modern, moscow, new, participants, partnership, people, person, podium, professional, professionals, seminar, session, sitting, stage, study, training, woman, writing,