She knows about all those typical guy activities (chasing the girls, staying out late with the guys, etc.) and how they usually tend to hurt the girl they are in a relationship with. So she's saying that if she were a boy, even for just a day, she would be the best man she could be because she knows from personal experience how it feels to be hurt by the man she's in love with.
I usually don't like Beyonce's songs, but this one has a really special place in my heart. (:
She knows about all those typical guy activities (chasing the girls, staying out late with the guys, etc.) and how they usually tend to hurt the girl they are in a relationship with. So she's saying that if she were a boy, even for just a day, she would be the best man she could be because she knows from personal experience how it feels to be hurt by the man she's in love with.
I usually don't like Beyonce's songs, but this one has a really special place in my heart. (: