1, search in WeChat applet: avatar assistant, a small program, made of it.

2. After entering, find the function of the national flag portrait. After entering, you can automatically add the national flag to the lower right corner of your WeChat avatar.

3. Add other icons. You can click the custom icon and upload it locally. After confirming that the effect is good, click Save to save the generated avatar to the mobile phone photo album to use the national flag.