Ключевые слова: adult, arab, audience, background, beard, board, brainstorming, business, businessman, center, communication, conference, congress, corporate, discussion, education, ethnic, event, flip, group, hall, hand, happy, investor, leader, learn, lecture, male, manager, meeting, men, modern, office, people, person, presentation, professional, public, small, speaker, speech, startup, tablet, teacher, teaching, team, training, white, worker, young,