Let me show you the 8.027 version of mobile phone WeChat:
1. Open the WeChat chat interface with any friend, and then select the emoticon, as shown in the following figure:
2. Then select the search icon, as shown in the figure below:
3. The expression required for the search is shown in the following figure:
4. Add a person's name, click on the composite expression, and you can get the exclusive expression pack.