Some people will feel uncomfortable when they receive a smiling expression, because that expression always feels like a smile, and it is always easy to associate each other's attitude with the expression.
If you smile from the heart, the corners of your mouth will be upturned, Lysaurius will rise, the silkworm will bulge, and a groove will be formed under it; With the improvement of zygomatic muscle and the contraction of orbicularis oculi muscle, people's eyes will close, their pupils will become smaller and crow's feet will deepen.
The lower part of the smile in the WeChat expression belongs to the normal smile after suppression, which conforms to the mouth expression of the smile; However, the orbicularis oculi muscle in the upper part of the eye is not contracted, and the line of sight moves down, which shows that this smile is not only a fake smile, but also reflects a negative mentality.
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The role of expression packs
Expression packs are essentially a popular culture. Relying on the continuous development of social and network, the way of communication between people has also changed accordingly. From the earliest written communication to the use of some simple symbols, emoticons, emoticons and expression packs, it has gradually evolved into an increasingly diversified expression culture, using some self-made and popular element pictures to communicate.
Most of these pictures are funny and exaggerated in composition. By collecting and sharing these pictures, people can have fun and show their hidden pictures, which can be recognized by people and achieve psychological satisfaction.