If you use gimp. To make a animation head. Click filters; find animation; click spinnying globe; then it will load into a spinny head. Then to preview it, Click filters, go to anmation, then click play. If it is not to your liking. then fix it.
Then you save it. Under this. Spinny_head.gif. Then click animation, not grayscale.
To add it. Just do it the same way you added your picture right now.