After setting up the QQ space signature file, you can check "Use signature file" below when leaving a message in other people's QQ space, so that after leaving a message, the picture of the signature file will be displayed below the message content.

Add a picture to the Q-space signature file:

1: Log in to your QQ space and click "Spatial Data" on the left side of "Settings =" at the top right of the space to edit the signature file under the spatial data;

2: Then click "Picture" at the top of the signature file editing box to pop up the Insert Picture dialog box. Please choose one of three ways: photo album, local upload and grid picture, add your favorite picture, and finally click OK to save.