1. Open WeChat and find a friend dialog box or file transfer tool.
2. Click the+sign in the lower right corner, select the first function "Album", and select the picture you want to make an expression pack.
3. Click Edit in the lower left corner to enter the picture editing interface, select the third added text, and enter "Baby is not fat".
4. Adjust to the appropriate orientation, click "Done" in the lower right corner, and then click "Send" in the upper right corner.