From a while back:
I read an article (in Salon probably) by a western woman who'd spent time working in Saudi Arabia and one of the things that struck me about her adventures in staying covered up at all times was that the reactions of men who would "see" her (like, once she was -- fully covered -- waiting for a friend outside of a bank she wasn't allowed to go in to and the guard asked her to stand to the side instead of right out in front because it men were staring. and when she told her friend he was not sure why this upset her...) was that the men acted like they'd just hit puberty. They stared, they stammered, they got really freaked out whenever they had to deal with her.
When I was in Israel a few years ago, I went to Shabbat services at an Iraqi synagogue with an Iraqi Jewish Israeli girl who was on the trip. (They had a few Israelis come along on the trip so that we'd get to meet and discuss things with them, rather than just hanging out with other Americans.) After the services, we were waiting outside the synagogue for one of the guys from the trip who'd also come to services -- he was in the men's section, and had stayed inside for a few minutes to talk to someone there. I was getting tired of standing and sat down on a bench, and the girl I was with said that no, I shouldn't sit there, because that bench was where the men would see me right as they walked out of synagogue, and she found another bench for us to sit on that was out of the direct line of sight of the door to the men's section.