I was in my French class (which I really like so far), and I heard a loud 
hiccup. It wasn't that Mexican girl I've spoke about before, but a 
white-skinned girl with pretty big breasts. For the ratio on loud-to-silent 
hiccups, I'd have to say it was about silent=49% and loud=51%. It didn't 
matter that they were just audible, because whenever she had her mouth open, 
they would rip off as loud as you could want. Most of them were 
single-syllabled "hups," but there were a few double-syllabled ones in 
there.

About the movements, for the first few minutes, her hiccups would rock her 
completely back in her chair. Her breasts (what I could see of them. I sit 
kinda behind her and to the side) would bounce pretty well, though more so 
when she would make a silent hiccup. I couldn't really see her chest/neck. 
Sorry to the chest/neck/belly guys, but I had a bad viewpoint from where I 
was sitting. I wanted to move, but that would've been just too obvious.

P.S. - This is one of the girls I've always dreamed about seeing with the 
hiccups. I guess this proves that dreams do come true.