Paragon for Justice? Or Merc for hire? Your choices will affect how the campaign progresses, and what quests are available for you.
Pick your back story carefully. You can't change it once we begin. (E.g. criminal, Aarakocra, Teifling, Drow elf etc).
If you are holding the dragon, it's your turn to speak, and we don't interrupt others PC's when talking or asking a question.
Only the DM can stop a player, or change who is speaking.
We are all here to have fun! So let's do that in a happy, peaceful, no prejudice and bonkers way ^_^.
The DM reserves the right to serve you amusing consequences if you become too much or a Paragon, too much of a murder hobo, too chaotic, or too mary sue. That does not mean don't go for it, as all these options are hilarious in action.