Activity: Be active, but don't let this be more important that real life.
Romance: Keep it in your pants / PM or Time-Skip.
Language: Swearing is going to be natural, but don't use racial insults or many of the sexual words/insults you can find on the Urban dictionary.
If making a post that involves a LOT of cursing (some characters are like that), then please use asterisks, so they'd look either like S*** OR f**k. Use two or three asterisks, that way we know what you're saying with you actually saying it.
Language, v. 2: Please, by any means possible, "dnt t@lk lyk# d!$".
Try to be at least a little grammatically correct and spell as best you can. However, if you character has a verbal tick, that should be fine.
Characters: Every single character is unique and different, and each has their own faults. I'd personally suggest looking through the already created profiles to see what's been done.
Characters, v. 2: No god-modding. God-modding meaning puppeting other characters, making your character seem/be invincible, and trying to wrap the entire plot around your own character.
Behaviour: Don't hate the characters, and do not hate the player. If you have a problem with a member and/or how they're playing a character, speak to the Captains or Crew. Characters can hate characters, and that's about it.
Behaviour, v. 2: If we ask you do change something (a post or otherwise), change it. We have a reason for asking you. If you fight back or insist without even trying to see our point of view, you'll receive a demerit. Three demerits, and you receive a ban, simple as that.

No godmodding/bunnying/puppeting etc. Only Captains and Crew are allowed to do so in situations they see fit.