what does it mean when a guy looks at a girls boobs and whistles?

That he's a perv and doesn't respect women.

Not at all! ;) I love dressing up and if some of the stats mentioned in this question are true* than there are plenty of men who crossdress! What makes crossdressing seem 'wrong' is the fact that it's not 'accepted as the norm' in society. But if the next male fashion trend was to be skirts and tights and dresses and leggings and high heels etc. than there would no doubt be plenty of men who would immediately change their style to suit! ..and no-one would consider it 'wrong'. *not saying the stats mentioned are not true as such, but reliability of stats on a website like this is not great. But it's a fact that there are plenty of men all round the world who enjoy crossdressing.

That he likes what he sees, and is being honest about it.

Or that he wants to provoke the girl and see her reaction.

it means that the guy likes your boobs. what kind of question is this?

It means he is a pervert and has no respect for women. It means stay away from him.

it means he thinks you have big knockers and is an insensitive person. Or he just wants to make you laugh.

Steve C would be the breast man (sorry best man ) to answer this!!!

He has no respect for her

SteveC

If you don't already know, honey, then you are in serious trouble.

he sees somthing he likes =O