Ключевые слова: adult, adults, asking, attendee, attention, audience, business, businessman, center, cheerful, closeup, collaboration, colleague, communication, company, conference, confident, congress, corporate, day, diversity, education, ethnic, ethnicity, event, executive, indoors, lecture, listener, male, man, men, millennials, modern, motivation, multiethnic, occupation, person, presentation, presenting, question, raised, seated, seminar, sitting, smiling, suit, support, teamwork, training,