If a guy you're talking to is looking at you from head to toe.

Here's how a girl I knew at work(who happened to be fairly well endowed) handled this. Some 'production gofer' stopped her on the production floor to discuss a work matter, all the while, openly staring at her bosom. She said, loud enough for some twenty people of the production floor to hear: "Hey, jerk! Quit talking to my t$ts! Up here(pointing to her face)! Talk to my face!". Problem solved...

Yeah I've experienced such things and it makes me very uncomfortable. I generally try to end the conversation as soon as I can when any such thing happens.

I doubt that anything was wrong with you. He may have found you attractive and it was rude of him to scrutinize you that way.

@Ayuriny well I think the person can be pervert or may be he is very dubious of you carrying something illicit as if checked by the airport authorities.

yes...i hate it when men check me out like that...it is different when it is a friend...because then i just twirl and ask them how i look.. but it is creepy coming from a stranger.

Some People ( Both male and female) have perverse and fickle mind set so they naturally behave in a odd manner but some people like to admire the beauty and i have seen and experienced many girls checking me out in the mall but i did not feel uncomfortable . each individual feels differently in differnt situation

yes, i have experienced this before. i don't like the feeling. and i think its quite offensive

Well you could have frowned and say my face is where you should be talking to. Bet that would have solved the problem. Sometimes a frown does the same message don't need to use words to shut the guff