The first thing you do Is type up a character sheet.
Here is an example:
Screen name: Demascions lycan
Character Name: Darious
Sex: Male
Age: 17
Bio: Darious was born into a rich family. he lived the dream... Just not his. He left that world behind for adventure and now travels the world.
Appearance: there are several ways to do an appearance. I'll show you all three I know.
The first way is simple, describe it.
Darious wears his hair in dread locks. He has dark hair and steel blue eyes. He is well defined, but not bulky in his muscles.
The second way is a link.
Darious
This is how its done:
[url=http://i992.photobucket.com/albums/af46/missdivahollywood/2811926968_77940e5712.jpg]Darious[/url]
[url=(your link)] Character name [/url]
The final way is showing the picture.

This is how its done
[IMG]http://i992.photobucket.com/albums/af46/missdivahollywood/2811926968_77940e5712.jpg[/IMG]
[IMG=(your link)]
Thats the first step. Help that helps.