2. Then enter the new interface, find and click more.

3. Then enter the interface and click Personalized Signature.

4. Then enter the interface of setting personalized signature, and enter the text and horizontal line you want to set. Take "this circle of friends is only open to you" as an example. You can modify the text according to your own requirements, and then click Save.

5. Finally, open your circle of friends to see, so that the setting is successful.