I've never been to one of these, suddenly realised we have one on Friday. All I know about the dress code is that it's long. I have a long turquoise strappy bridesmaid/ball gown, can I wear that? or does everyone go in black/dark purple? do I have to cover my shoulders? erm...anything I should know beforehand? we've recently moved and I've not got to know any forces people yet so I can't ask anyone here. I'm having a mini-panic!