Ключевые слова: 20s, abstract, blue, calling, caucasian, cellphone, communication, computer graphic, confidence, connection, conversation, coveralls, design, digital, digitally generated, expertise, five, glowing, happiness, holding, interacting, job, light, machine man, machinist, maintenance engineer, male, man, manual, mechanic, mobile phone, notification, occupation, on the phone, phone, professional, protection, receiving, red, repairman, safety, service, skill, speaking, standing, talking, technician, technology, text message, text messaging, texting, uniform, wireless, work wear, worker, workman, young adult,