1. You can click on the avatar, and the user's nickname and personal signature will come out. You just need to fill it out.

2. You can stand alone in the lower right corner of the computer (left button) QMM or QGG (Penguin), I will appear online, Q me, and so on. The last one is personal settings. When you stand alone (left button), you will also have user nicknames, gender and so on. Just fill it out.

3. If your version is not QQ2008, like me, you can only use the second one.

Try it as I say!