Ключевые слова: aged, attorney, boss, business, businessman, businesspeople, caucasian, ceo, commander, conference, confident, corporate, elderly, executive, eyewear, glasses, grey, group, hair, happy, instruction, instructor, knowledge, leader, male, man, manager, mature, meeting, middle, office, old, people, person, portrait, positive, presentation, professional, serious, sharing, smart, smile, smiling, successful, suit, team, teamwork, trainer, training,