1. Go to the chat APP page, search for the micro signal you want to add or enter the micro signal directly in the chat dialog box.

2. Enter the micro signal in the search box, or click the "Add" icon in the upper right corner of the chat dialog box and select Add WeChat.

3. Enter the WeChat Add Friends page, and you can choose to add friends by micro-signal, mobile phone number, QR code, etc.

4. Enter the corresponding micro signal and click Search. If the other party discloses the micro-signal, it will display the other party's WeChat account.

5. Click the "Add to Address Book" button at the bottom of the other party's WeChat homepage to successfully add the other party's WeChat.