2, 20-25, 20-30, 20's, 20s, 25-30, accepting, acknowledging, adult, african, african american, african-american, afro american, afro-american, associate, business man, business woman, businesspeople, calling, casualness, cellphone, cellular, cellular phone, cheerful, colleague, color, colour, communicating, connecting, connexion, delighted, dispatching, easygoing, enjoying, enterprise, examining, executive, eyeing, fellow, female, furnishing, furniture, gal, gentleman, glad, gratifying, guy, happy, human, human being, indoor, informal, inside, joining, jolly, joy, lady, lifestyles, lighthearted, looking, male, merry, mobile, mobile phone, of african descent, operating, pc, person, personal computer, phone, pleasing, pleasure, reader, recipient, relaxing, responding, satisfaction, seated, seating, seeing, sender, smile, sms, telephone, telephoning, text message, three-quarter length, toiling, twenties, twenty, two, western european, wireless, women, work, workplace, world wide web,