This symbol was made in the WeChat emoticon, probably downloaded from his search, and then you can add it to the emoticon when you identify your personality.

The specific steps of making symbols in WeChat personalized signature are as follows:

1. First open WeChat, enter the personalized signature modification page, and click Modify.

2. Then, delete the original personality signature on the page.

3. Open the input method on the mobile phone, find the expression pack, and click in.

4. Then, find Yan Wen in the new page and click "Yan Wen".

5. Then browse the emoji by yourself, select the emoji you want, and then click Save.