Ключевые слова: 30s, aged, balloons, beverage, birthday cake, bonding, candles, catering, caucasian, cellphone, cheerful, classy, coffee, coffee cup, communication, confidence, connection, drink, enjoyment, expertise, female, friendship, fun, happy, holding, hospitality, hotel, job, leisure, mid adult, mobile phone, occupation, phone, presenting, profession, professional, refreshment, restaurant, retired, retirement, saucer, senior citizen, service, serving, smiling, standing, table, together, tray, uniform, waistcoat, waitress, wireless technology, woman, worker, working,