Ключевые слова: advertising, alternative, angry, background, bad, best, block, bright, business, choice, choose, client, consumer, cube, dark, emoticon, emotion, emotional, evaluation, excellent, expression, faces, feedback, fun, good, happiness, happy, idea, joy, marketing, mental, mental health, mood, negative, opinion, personality, positive, quality, rating, reputation, review, sad, satisfaction, select, service, signs, smile, user, wood,