Ключевые слова: awareness, background, banner, blue, business, client, complaint, compliment, concept, customer, dislike, dissatisfaction, emotion, employee, evaluation, excellent, experience, feedback, frowning, good, hand, harmony, mental, mood, negative, people, person, positive, psychology, quality, questionnaire, rank, rating, resolutions, result, review, sad face, satisfaction, service, smile, smiley, space, survey, symbol, test, unhappy, user, wellbeing, wellness,