Sis it like this most guys lack confidence that's why they fear asking girls out cause they fear rejection like you toothache why according to me a girl asking me out is better than me asking her out cause girls are more intelligent than boys in most cases GUYS ALSO FEAR REJECTION.
For me it's one of the worst things that I can imagine and in some cases it's prevented me from walking up to a girl that I really liked and wanted to ask out. Only to find out 1/2 a year later that she was just waiting for me to ask her out.
Or maybe even worse when I really like a girl and a gather the courage to do something about it the anxiety makes me screw things up so that even if she likes me everything falls apart and I make a complete ass of my self. Of course never get the girl or maybe having to wait some time before I could try again. Then it gets worse. ;-)
So if a girl just gives me a hint that she might be into me or that I could make a move it makes things a whole lot easier on my part. Also I get more confident and everything is smooth sailing from then on.
the better looking girls are more shy or expect you to ask them out/make the first move. it's the guys who are traditionally supposed to make all the moves after all. but I've noticed that less attractive girls have been more forward with me.
i would say if you want to ask a guy out, do it subtly, it's more lady-like. and don't be annoying