2, 20-25, 20-30, 20's, 20s, 25-30, 40-45, 40-50, 40's, 40s, 45-50, 50-55, 50-60, 55-60, adult, affiliation, alliance, arranging, associate, association, board room, boardroom, business clothing, business man, business woman, businesspeople, chatting, collaborating, colleague, color, colour, communicating, computer, connecting, connexion, conversation, conversing, curious, daylight, daytime, dialog, dialogue, discussing, displaying, e-book, e-reader, electronic book, electronic reader, enterprise, executive, exhibiting, fellow, female, fifties, fifty, forties, forty, gal, gentleman, guy, head & shoulders, human, human being, indoor, inside, interest, joining, lady, lifestyles, male, meeting room, mid life, middle age, middle aged, middle-age, middle-aged, operating, organizing, person, reader, seated, speaking, suit, tablet, tablet computer, talker, team, three-quarter length, together, toiling, twenties, twenty, two, western european, wireless, women, work, workplace, world wide web,