Originally Posted by Cora

As long as you remember a few basic rules most people won't bark at you.

Firstly make your character interesting, no one likes perfect characters.
Secondly, help move the story, don't always wait for the other person to move first.
Thirdly, don't Godmode, meaning your character always out beats the other characters every time, they are perfect and have no flaws.

Most people are willing to over look other things.