1. Open WeChat and enter the address book interface.
2. In the address book interface, click the "Add" button in the upper right corner.
3. Select "Find official WeChat account" in the pop-up menu.
4. Enter "Strange Stones" or related keywords in the search box, and click Search.
5. In the search results, find the related strange stones or favorites, and click "Follow".
6. After paying attention, you can join the Kistler Group with the approval of the administrator.