There is a time and a place for such things. If it's at a party where everybody else is drinking too, it's not a problem. If it's something she regularly does between breakfast and lunch then it's not a very attractive habit, to put it lightly.
You can't 'act' drunk, if you ARE drunk... But its definitely gotta be embarrassing for them, especially if anything happens and they can't remember any of it the next day all because they were out getting themselves totally wasted KNOWING that they could end up with a day like this or every time they drink, no matter what.
it's ridiculous. these girls go out and get reqally drunk and make idiots of themselves thinking that guys will like them but all the guys are really thinking is that they're easy trashbags who they can have sex with and then just walk away.