Why is the “smiling” expression uncomfortable

  Among young people, the “smiling” emoticon that comes with social software is not welcome. According to the survey, in online chat, only 26.5% of respondents often use words such as “hehe”, “um”, “oh” or expressions such as “smile” and “goodbye”, while 31.5% of respondents think that they use the above expressions or The words are impolite or indifferent, and some interviewees said that “the’smiling’ expression later became an expression of indifference.”
  Xiao Rong, an associate professor in the Department of Psychology at Southern Medical University, said that laughter may seem simple, but it actually takes different forms. When chatting, in order to express pleasure, there are often “smiles”, “big laughs”, “funny smiles”, “mouth covering smiles” and “cute smiles”. “Smile” means a toothless smile, close your lips and look straight ahead; when you “laugh” and “smile”, your mouth opens wide, and your eyes are narrowed; the eyes of “smile” and “cute smile” are also narrowed stand up.
  When smiling from the heart, there are two muscles involved in the face: one is the zygomatic major muscle, which is located on both sides of the cheeks. It can stretch and lift the corners of the mouth to both sides, and the “apple muscle” will bulge; It is the orbicularis oculi muscle, which is located around the eyes. It is found in many expressions, such as disgust (eyelid squeeze) and anger (lower eyelid straightened). In a smile, this muscle is also essential to make the lower eyelid convex Go out, get shorter, and move up. Under the coordinated movement of these two muscles, a sincere smile will “lift and bulge the lower eyelids” and “the corners of the mouth will lift up”. The smiley face will look like “the corners of the mouth are raised, the apple muscles are bulging, and the eyes are squinted.” Moreover, the degree of squinting eyes is directly proportional to the degree of happiness. For example, when smiling, the corners of the mouth are slightly lifted and the eyelids are slightly closed; when you laugh, the corners of the mouth are lifted to the maximum, and the eyelids will be completely closed. All in all, when you really laugh, “the mouth laughs, and the eyes laugh.”
  However, the “smile” in the online emoticons is very special. It is only the corners of the mouth cocked, but the eyes do not change, that is, “mouths smile, eyes do not smile”; and the line of sight is downward, and the eyes of the “goodbye” and “sad” expressions are completely different. Consistent, giving people the feeling of “smiling but not smiling” and “inhibiting” a smile. When people suppress their smiles, they need to control the muscles around the lips, which will offset most of the movement of the zygomatic major muscles, making people feel “a fake smile”. There is also a boy who is famous for his smile on the Internet-the smirk boy. His smirk is also with the corners of his mouth cocked, but his eyes and cheek muscles are calm. When the condition of the lower eyelid, the height of the cheek bulge, the shape of the mouth is wrong, or the changes of these three parts are not coordinated, the sincerity of the smile will be greatly reduced. So the “smiling” emoticon is more like a smirk or sneer.
  The embarrassment and impoliteness of the “smiling” expression have been tacitly understood by young people, but if the middle-aged and elderly elders use the “smiling” expression, you don’t have to ponder the deep meaning. Because when older people smile, they often want to look more solemn and often show signs of “inhibition”. When chatting online, they are more inclined to use a “smile” that looks more “serious”.