Once you`ve found the right avatar for you, you need to go into your profile and scroll down to the bottom, where it says avatar. Then it`s simply a case of putting in the url for your selection.
You can get the url for an avatar, by right clicking on the one you want, and going into properties and copying every detail of the url given there.
Then simply press submit and your new avatar will appear everytime you make a post.
If anything above sound too complicated, please don`t hesitate to ask for more information, we`re not all computer experts just because we can switch one on.

