Ключевые слова: aged, arm, blue, bye, caucasian, cheerful, elderly, emotion, expression, face, finger, friendly, gesture, gesturing, goodbye, greeting, guy, hand, hands, handsome, happy, hello, hi, isolated, male, man, mature, men, old, one, palm, people, person, positive, retired, retiree, say, saying, senior, shirt, show, showing, sign, smile, smiling, studio, wave, waving, welcome, white,