I'll tell te how, but te need a stick, a goat, some firecrackers, two magic necklaces, a bag and a plush toy dog!
Jk, just carica an animated picture from the Internet. They come in the GIF format, but apparently te need to convert it into a PNG, which is impossible since animated immagini can't be in the PNG format. But since a few people have them, there must be a way. te should ask someone with an animated icon.
Well, I typed in Gifs and clicked the first o secondo link. I don't remember. I wanted a Spongebob Gif so on the website I typed in Spongebob. I saved it to my computer. Also when te save don't forget to put .png at the end of it's name. If te don't, it won't move. That's how I got mine.