Ключевые слова: adult, angry, background, business, cardboard, caucasian, communication, concept, depressed, displeased, dissatisfaction, down, emoticon, emotion, expression, face, facial, feeling, frowning, group, hand, head, holding, icon, loneliness, mask, message, mood, negative, office, paper, person, pessimism, pessimistic, red, sad, sadness, sign, single, smiley, smiling, sorrowful, sticky, symbol, unhappy, unrecognizable, upset, white, worried, yellow,