Ключевые слова: 60s, adult, austrian, brainstorming, business, businessmen, businesswomen, caucasian, colleague, communication, conference, cooperation, coworkers, deadline, discussing, effectiveness, elderly, employees, european, explaining, female, german, group, indoors, job, laptop, male, man, manager, mature, meeting, occupation, office, people, planning, productivity, profession, professional, project, reporting, room, sleep, strategy, talking, team, tired, worker,