Ключевые слова: 20s, adult, adults, authentic, candid, casual, caucasian, cellphone, chat, closeup, college, communication, conversation, copyspace, cropped, education, female, indoors, informal, internet, learning, lifestyle, looking, message, mobile, modern, natural, online, people, person, phone, real, rude, school, screen, showing, smartphone, standing, student, students, technology, text, texting, typing, university, web, woman, women, young, youth,