When you have created your character in the "Character" section, you don't need to post their info when you are joining a roleplay. You just start right in the roleplay, or you can tell the creator of the roleplay that your using that character and tell them where to find the info.
If you need any serious help, pm me. (PM = Private Message.)
Profiles:
To change your profile go to the button at the top that says "Profile." and then you can edit it from there.
What's a signature?
A signature is your own writing or pictures that will show up under each one of your posts. You can change your signature when you edit your profile.
Any other questions?
The FAQ button at the top is a great way to get help.