Like this, QQ signature is invisible in space.
As shown in the figure:
The computer terminal and the mobile phone terminal are separate. If you want the QQ signature published by the computer to be visible, you must set it as follows:
As shown in the figure:
The QQ signature on the mobile phone is set as follows. After setting, you can synchronize your signature to QQ space when you publish it, and you can be seen, commented or liked by your friends.