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, acknowledging, adult, african, african american, african-american, afro american, afro-american, associate, beverage, black, business clothing, business man, businesspeople, caffeine, calling, chatting, colleague, color, colour, communicating, connecting, connexion, conversation, conversing, cup, daylight, daytime, dialog, dialogue, discussing, drink, e-mailing, email, enterprise, examining, executive, eyeing, fellow, fifties, fifty, food, forties, forty, furnishing, furniture, gentleman, guy, hearing, human, human being, indoor, inside, joining, liquid, listener, looking, male, mid life, middle age, middle aged, middle-age, middle-aged, observing, of african descent, operating, pc, person, personal computer, phone, reader, responding, seated, seeing, seriousness, solemn, somber, speaking, suit, talker, telephoning, three-quarter length, twenties, twenty, two, western european, work, workplace, world wide web,