Ключевые слова: advertising, alert, app, black, bubble, business, call, character, chat, comment, communicate, communication, connect, contact, conversation, employee, forum, group, icon, information, internet, isolated, language, media, message, messenger, mobile, network, online, people, person, phone, public, sale, school, service, simple, social, speak, speech, talk, team, teamwork, technology, web, work,