Why can't girls say what's on their mind?

Its because we can be unsure on how the guy feels so were apprehensive on how to ask or say things to a guy we like.

The possibility that he might feel the same way is way better than knowing that he doesn't. Even possibly unjustified hope is significantly better than none at alls

It's because we are afraid the answer that we may get.

Because then the girl would make a fool out of herself if the guy doesn't say anything.

Well, when you are unsure where the other person is coming from I guess it is a gray area. I dated a guy for about a month and we talked sometimes for hours. Then we stopped dating because he was not ready to get serious. We are now good friends and flirt a lot and see each other once in awhile to do things. We ended up having sex last time. It has been ok since then, but I would think that if he were really into me as he was before we broke up, we would be talking all the time, no? I have feelings for him, but I think he has them for me, yet we really don't say it to each other, just sweet emails and text messages that are nice and sweet, then very sexual. I am not sure what to say if anything, I am not sure where I stand. I may be over thinking everything and she just see what happens. Maybe if you are in a gray area, it is harder to say something, like I am now...

We say what's on our mind but it doesn't always translate 100% in to guy-speak. Just like we don't always understand what you say. A little bit of confusion and doubt keeps things interesting.

Because they are scared that the guy wouldn't be interesting in them, so I will say try to let her know that you are interested, too.

I agree, a lot of girls are shy. Maybe the guy doesn't come across so much that he likes her, and she doesn't have enough confidence come out with it. Most guys are simple and straight forward, whereas girls can be more complicated. It could be that she thinks that if she makes a move, you might look at her differently? There could be a million and one different reasons why she doesn't. I wouldn't assume though that she wants to see how much the guy will go out of his way for her. Because that's rarely the case! Maybe telling her what's on your mind! :o)

This is easily answered in one word "Rejection"
she is afraid you are going to push her away, or you don't like her back so she is just going to flirt though not come out completely with all of her feeling's until she knows you like her=] or you make the first move, if you can tell she is passing you signs of interest.

As for me, I was always scared to say something to make him not love me- I was stupid, when I realized that if he did not like me for me, then I started to tell him what was on my mind, Let her know that whatever she says, you will still love her and she will tell you what is on her mind

Ok I am a girl,and mostly I believe girls do this, because they love the idea of being chased. What's the point in telling the guy everything when it'll just make her feel awkward?
If you knows she interested, MAKE A MOVE ALREADY! Lol

Women can fear rejection and have a shyness about them.

And tons of women are insecure and frankly, men are terribly confusing.

They can't say what is on their mind necessarily because they get judged to critically. If a woman wants sex she can't admit it without the stigma of being a "slut." Conversely, she can't say she isn't interested because then the men will get upset because their egos get bruised and the woman will have to defend the frigged comments.

Girls is just as scared as guys when it come to expressing feelings about themselves. We are all humans, we are all same. You get shy girls as much as shy guys, open mind girls as much as open mind guys.

This applies equally to girls as well as guys. We're all ABLE to say what's on our minds, it's just that a lot of times we don't think it would be a good idea, or we're afraid of the repercussions and failure which may happen. Everyone always complains that girls/guys don't say what's on their mind, but imagine what would happen if we all did. Sure, there would be some easy connections that wouldn't have otherwise happened, but far more likely would be situations where "what's on our mind" would have been much better off just as a thought, not being said out loud. I mean, even the most polite approach to a woman these days is often seen as rude and creepy if you don't know her beforehand. Imagine if you used the approach that was on your mind, instead of refining it into polite form first?
It's all relative. We want the cute person that we adore to say they like us if that's what's on their mind. But we wouldn't want them to say we're ugly, if that's what's on their mind. And we wouldn't want an unattractive girl to say they wanted to jump our bones. What it seems like everyone really means is: why can't people I'm interested in say the things I want to hear when they have that on their mind?