Ключевые слова: app, app user, application use, camera, candid laughter, cell communication, cellphone, chat, children, communication, elder, family, generation, grandmother, grandmother laugh, hand, happy, happy mobile, holding screen, home, internet, joyful, leisure, life, lifestyle, looking distant, mobile, online, people, phone, positive, see, senior, smartphone, smiling using, talking, tech watching, technology, time, vertical, video call, videocall, web conference, woman, zoom,