Ключевые слова: adult, audiencefree event, bald, beard, blue, briefing, business, business briefing, caucasian, cell phone, cellphone, computer, desk, discussing, distance learning, earphones, education, face mask, fellow, guy, human, indoor, indoors, laptop, lecture, lesson, lockdown, male, man, medical face mask, meeting online, mobile phone, person, phone, portrait, prevention, professional, red, remote studying, remote work, shaved head, smartphone, table, technology, video call, video conference, webinar, work, workplace, workspace,