Step 1, open the mobile phone WeChat, as shown in the figure:
Step 2, click "I" in the lower right corner, as shown:
Step 3, select the "small arrow" on the right side of the avatar, as shown:
The fourth step, click enter, and select "more information", as shown:
Step 5: Find "Personal Signature", click Enter, enter your phone number, and then click Save in the upper right corner, as shown:
When you set your personalized signature, you can see your phone number under your circle of friends.