Re: In public...
I've always been wanting to smoke out in public especially in between classes at my university.
But, I don't think you will be able to without professors, cops, passerbys, etc. without giving you a hard time about.
They're gonna automatically gonna think your using the hookah for smoking illegal substances and some people are really narrow-minded. Its cuz when they see any sort of water pipe, they automatically think its something used for illegal substances.
If you wanna try, go for it. But there is a chance your session will be cut short b/c of some people's stupidity.