Ключевые слова: african, background, black, business, businessman, businesswoman, computer, conference, corporate, dark, digital, discussion, display, expo, female, graph, graphs, group, hand, instructor, light, looking, man, meeting, mixed, modern, night, north, office, people, performance, pointing, presentation, professional, project, projector, race, room, screen, standing, strategy, table, team, technology, white, woman, work, young,