1. Open WeChat, switch to my tab, and click the Settings button;

2. Enter the setting interface and click the plug-in button;

3. Enter the plug-in interface and click the search button;

4. Enter the search interface and click the switch button in the upper right corner to enable the search function;

5. Switch to the discovery tab and click the search button to enter the search interface and click the expression button;

6. Enter the content of the search in the search bar, enter the lobster, click the search button, select your favorite expression in the returned results, click the Add to Expression button, and add it to WeChat.