I dont understand it either. I think its like a comfort thing, a reaffirming of manhood or something
Speaking as a guy, it could be any number of things. Sometimes underwear gets bunched up or partially turned and that's uncomfortable. The British have a saying, "Don't get your knickers in a twist," when someone is acting all upset. This is because when that literally happens is IS upsetting and makes men squirm.<br />
Another possibility is an itch.<br />
In both cases, you are supposed to wait until you can get to a men's room where you can shut the door and have some privacy while you fix the situation.<br />
A third possibility is that it's some kind of dance move. Michael Jackson used to have a signature dance move where he would very abruptly grab his crotch and sing "Hee HEE!" in a very high-pitched, loud shriek above the rest of his song. He was considered an excellent dancer, which I agree he was.
I know i don't see why they would do it neither.
Look at them while they speaking by cell phones))))