1: In the WeChat interface, click "I" in the lower right corner.

2: On the "I" page, click on your own "micro signal".

3: On the "Personal Information" page, click "Personal Signature" at the bottom.

4: On the "Personal Signature" page, enter the content, and then click "Save" in the upper right corner.

Note: The number of words is less than 30 words.