Ключевые слова: african, american, best, campus, casual, cell, cellphone, chatting, college, common, computer, digital, dining, ethnic, friends, group, hanging, happy, home, horizontal, house, indoors, interracial, laptop, learning, meeting, message, messaging, mobile, multiethnic, out, people, phone, reading, relaxing, room, selfie, sending, seven, sitting, smiling, student, tablet, talking, technology, text, texting, together, touchscreen, university,