Ключевые слова: activity, adult, aged, arms, asia, audience, auditorium, authentic, back, business, cheerful, classroom, club, community, conference, cooperation, crowd, education, elderly, enjoy, entertainment, entrepreneur, event, female, females, friendship, group, health, lecture, lifestyle, listen, listeners, mask, meeting, office, participants, party, people, person, retiree, seminar, senior, show, stand, team, teamwork, training, unity, woman, women,