Well just look for a small enough icon and right click on it. Once you right click, select "Save Picture As" and then you will have to choose a name for it. Once you're done choosing a name, click "Ok" and you'll have the icon ready! Next scroll all the way up to the top, put your mouse over the word "Settings" and scroll down and click "Edit Avatar". Next you'll have to Browse for the icon you want as your avatar. If you can remember the name look for the name (the pictures in your Picture Folder are in alphabetical order) or if you can remember what the icon looks like, look for the icon, once you find it, click "Ok". Then you can click "Save" (or if it has "Submit" click that). If it's small enough, you'll have your avatar up!
*~Tamagotchi~*