Ключевые слова: adult, business, businessman, caucasian, cell, cellphone, communication, data, digital, elderly, electronics, entrepreneur, executive, gadget, happy, holding, internet, male, man, manager, mature, message, messaging, mobile, network, networking, news, office, older, one, online, people, person, professional, screen, senior, smart, smartphone, smile, sms, social, technology, telephone, texting, touchscreen, using, wireless, work, worker, write,