First of all, you need to open a member if you want to add an expression before your signature. Next, open our mobile QQ, click the settings of mobile QQ, and click personalized signature. In the personalized signature editor, you can see an "expression+what to do", click it. We can see many classification options, so we can try an expression first. Select the expression to add. You can clearly see that there is an expression and text before the personalized signature, and click Finish. After saving the personalized signature, an expression will appear in front.

Method 2:

Open the QQ application on the mobile phone, click the QQ avatar icon in the upper left corner, click the setting options in the lower left corner, and click the contact and privacy options in the QQ setting page. At this time, the mobile phone page will jump to the contact and privacy page. In the options on this page, you can see the personalized signature synchronized with the setting project. At this time, we can turn on this function, that is, synchronize the personalized signature to the open button behind the talk function.