Lots of compression, resizing and cropping. My profile picture was 950kb, i then used this site http://www.gifreducer.com/ to compress it to 500kb. I then used this site to reduce it to a size right for an avatar by cropping and resizing it. http://www.online-image-editor.com/
hello friend, i recently jumped onto the bandwagon, and i used a gif resizer, please refer to wwwwwwwwwww.google.com for further information.
simply find the gif u want, and resize it to fit within the upload limits. then voila! u have a fancy moving profile picture like all the cool kidz on the street!!!