You mean how do you add an avatar? Follow these
simple directions (READ ALL DIRECTIONS BEFORE
DOING ANYTHING):
1) Create or find an image that you like for your
avatar. Be certain that you have permission to
use it if you didn't make it.. It must not be any
bigger than 192 x 192 pixels and 16384 bytes (16
KB). I think it can be a GIF or JPEG, I use GIF
myself.
2) click Profile in the top bar of the forums
3) Click "Personality" in the Profile Menu
4) Check "Use avatar."
5) Click "Upload Avatar"
6) Click "Browse" and locate your avatar image.
7) Click "Upload"
8) When you get back to the Personality settings
page, click "Submit"
There you go! You're done. Let me know if you
need more help.