Whacky Question..

[heatherlyinn]

Ok I just want to say before I ask, I did a google search before I am asking because I don't want to be a pain.
A few times since I started playing I have noticed pirates running around with green and blue Beer Steins ( or rum) above their heads.
I asked one guy once and he said " Idk, some crew thign"
Last night I joined a crew and when I joined there were no green and blue symbols over our heads but I believe once it was full they came on.
Not one of my crewmates knew why we had them, so i'm hoping someone here can help me figure it out.
Im a level 33 and i still feel like a newbie.. ( and no i don't mind being called newbie because we all were once he he)