Ключевые слова: 20s, 30s, acclamation, applauding, apple, attentively, blog, caucasian, cheering, ckis030216km, ckis260615ybon, ckis270812mof, ckis270812rs, ckis280912mot, communication, computer, concentrated, concentrating, contact lens, copyspace, ct5is080413tmadd, ctis051214vd, ctis100316cv, ctis100316osc, ctis121115agc, ctis121115al, ctis121115jf, ctis121115ms, ctis121115mv, ctis201115kdk, ctis210513jr, desk, digital tablet, documents, electronic, eye care, eyesight, fashion, female, files, focused, glass, landscape, laptop, male, man, mid adult, notebook, notebooks, papers, pictutes, scrolling, serious, sharing, sheets, successful, tablet, tablet computer, tablet pc, technology, text, thoughtful, touching, touchscreen, trip, typing, using, website page, western script, wireless, woman, young adult,