Use your Minecraft skin face for an avatar on here.....
Visit your profile page and select your name in the avatar list...
Example:
Most of you will be listed, those who aren't don't worry I'll be updating the avatar list daily.
And if you don't have a Minecraft skin at all, then go upload one here
http://kraftzone.tk/forum/index.php?page=SkinLogin
When you login to your ingame account you will see player skin (More options and your player stats to be added, you will be able to link your forum account to your in game account)