2) Select a photo from the album, jump to face recognition, click→ in the upper right corner to enter the next step, select a hairstyle that you think looks good, and click. (as shown in the figure below)
3) Then click the circular icon on the left to edit the hairstyle. After dragging the white dot to a satisfactory position, click the Save button in the upper right corner. (as shown in the figure below)
The above is the mobile version of Meitu Xiu Xiu's updated tutorial.