For example, in a library, opening your legs enough where he can see your panties? Or getting out of a booth or car or at a coffee shop, etc. If so, have you done that with no panties?
I have had this happen to me 4 or 5 times this year. Sometimes, I have to think it is intentional. I do like it and find it sexy and a turn on, but are they doing this on purpose, or just not thinking, or just not caring? What do you think is going on?
I bent over with a low cut top on the other day at work to pick something up when I knew a guy I liked was watching. Not sure if he knew I was doing it on purpose or not but since he had a huge grin on his face for awhile after that I'm sure he enjoyed the show.lol.
in a skirt, I'll bend over far enough so a guy at my locker can get a peak or ill let my legs open for a second casualy when I'm sitting then close them. Sometimes I mess with my bra so a guy can get a peak of my cleavage. It's intentional and a quick adrennaline rush for a girl;)
I've known that my boobs were really poppin out of my shirt and not really done anything about it if a guy I kinda like is there. But I've never intentionally done it. Its just a matter of letting it go if it already happened.