Ключевые слова: adult, audience, auditorium, business, communication, community, conference, conversation, corporate, crowd, education, elderly, enjoyment, event, friendly, friendship, hall, happiness, happy, health, job, learn, leisure, lifestyle, listen, male, mask, meeting, men, office, old, older, pensioner, people, person, portrait, retired, retirement, room, seminar, senior, session, sit, talk, team, together, togetherness, training, whisper, workshop,