Ключевые слова: activity, adult, attention, audience, briefing, business, businesswoman, career, caucasian, colleagues, concentration, conference, education, emotions, employee, entrepreneurship, european, event, executive, female, focused, french, group, indoors, interest, international, lecture, listening, manager, meeting, occupation, office, participating, people, person, polish, portrait, presentation, professional, room, seminar, staff, startup, strategy, student, training, woman, young,