I might be evil--but I used to like it when girls cried. I loved it. The emotional expression, the red cheeks, the scrunched face, the tears a'pouring. I used to like it. Now, it's not so fun.
NOW, I usually know why the gal cries and I've found that 8 times out of 10 you shouldn't try to "correct" it or stop it. Just hold on, ride it out, let 'em talk it out.