Funny, there is another thread on the subject in the Carnival forum.
Will your public proposal be well received by your girlfriend?
I would be mortified if my fiancee took a very special and private moment and made a public spectacle of it. Might just be me though.
Personally, I don't get the whole "public" proposal.. You know your girlfriend best.
If I were a guy, I'd go for a private proposal an a beach, or perhaps a onl deck at sunset, or even at dinner.