The first step is to open a chat dialog box casually, click the QQ emoticon, put the mouse on the smiling face, and remember the code of /wx as shown in the figure below:

Step 2, click on the avatar, as shown:

Step 3: Click Modify Data to show the following figure:

.

Step 4: In QQ Nickname, enter /wx and click OK, as shown:

That's it. It's settled.