Emotion expression is another form of discourse that is universally recognized and understood. Emotions should be considered a unique element to enhance the product or service offered [
10]. Emotions refer to the assessment of customer feelings about the experience of a company brand, product, or service [
11]. Emotion is an attitude that can stimulate, organize, and guide people’s perceptions, thoughts, and behaviors. Emotions influence all aspects of consumption from pre-purchase decisions to post-consumption behaviors [
10]. Researchers differentiate between general emotions and consumption-specific emotions. Unlike general emotions, consumption-specific emotions occur specifically during the use of a product or may be evoked as effective responses. Emotions are brief, intense feelings that occur without conscious effort and are usually accompanied by increased activation of the autonomic nervous system, and physiological changes in heart rate and breathing [
12]. Many authors acknowledge that there are positive and negative effects in the experience of emotions, with everyone experiencing either positive or negative emotions. [
13] suggested that people’s emotional indicators include 62 emotional states. [
14] believes that a person can express emotions through facial expressions and may exhibit ten basic emotions including interest, pleasure, surprise, sadness, anger, disgust, contempt, fear, shame, and guilt. [
13] identified eight primary emotions, including fear, anger, joy, sadness, acceptance, disgust, anticipation, and surprise. In his study, [
15] considered negative emotions, which included fear, anger, shame, discomfort, and disappointment. [
16] considered the dimensions of customer emotions including excitement, enthusiasm, fun, happiness, interest, excitement, and inspiration. [
17] illustrated emotions with components such as anger, comfort, pleasure, fear, happiness, importance, confusion, pride, specialness, distinctiveness, sadness, shame, and complexity. [
9] categorized emotions into two groups: positive and negative. In their view, positive emotions included pleasure, excitement, and relaxation, while negative emotions included anger, distress, hatred, and fear. [
18] divided emotions into two categories: positive emotions (excitement and happiness) and negative emotions (anger, anxiety, and depression). In their study, [
19] focused only on positive emotions, considering them to include comfort, happiness, satisfaction, and romanticism. [
20] also divided customer emotions into two categories: positive (joy, pride, fun, entertainment, interest, and attachment) and negative (anger, hatred, humiliation, disgust, enmity, and fear). [
21] in their model considered satisfaction, happiness, peace, optimism, pleasure, and excitement as dimensions of positive emotions, and anger, fear, discomfort, and embarrassment as dimensions of negative emotions. [
22] took into account positive emotions such as excitement, surprise, peace, and pleasure, and negative emotions such as anger, disgust, hatred, shame, distress, and despair.