Thick lip type: the orbicularis oris muscle and loose connective tissue are developed, which makes the upper and lower lips thick and the lip peak is too high, which makes the lip type tend to evert.

Thin lip type: the red part of the lips is thinner.

Corner upturned type: It has upturned corner formed by the meeting of the two ends of upper and lower lips, which can produce the feeling of smiling.

Mouth drooping type: the prominent feature is that the mouth formed by the convergence of upper and lower lips is curved and drooping, giving people a sad and unpleasant feeling.

You didn't take pictures in a natural state when you took pictures. . . Looking at it, I felt a little giggling.