That would certainly work, although I'll note that the bar-staff isn't controlled by a player, most of the time. They're NPCs.
As for font colours, people use them to make their character's dialogue stand out from the rest of the post. So just pick whichever one you like. Or don't, since not everyone does it.
So I'll assert the reaction of the bartender as well? I did read a bit of the FAQs, though it's all theory until I actually get in.
Awesome OOTS-style Fallout New Vegas avatar by Ceika. Or it was, before Photobucket started charging money.
General nerd person. Mostly computer games and manga.