Ключевые слова: background, business, businessman, businesspeople, casual, cellphone, chat, chatting, city, communication, confident, connected, conversation, corporate, emotions, expression, handsome, holding, internet, joy, laughing, lifestyle, lifestyle modern, male, man, manager, media professional, messaging, mobile work, model, multiethnic, online, outside, person, phone, phone usability, positive, search browsing, smartphone, smile, sms notification, social networks, sun, technology, typing, using, walking, worker, writing planner, young,