You can use the mask sticker to open the Meituan Xiu Xiu app, click on the image beautification, and select the image to add the mask; Enter the picture processing interface and slide the menu bar to the left; Find and click on the sticker; Find and click on the sticker; , enter the sticker shop, click on the item recommendation; Find and download the mask paste, and click Use; Adjust the mask to your favorite color and adjust the size.