Originally posted by Nocturnal
I'll make this short but sweet.
If there is a girl you are interested in, you cannot be afraid to show it.
If she has a positive reaction, she will be MOST likely to have it the sooner you show attraction.
All it really takes is a joke etc about you and her. Something like "You don't have to try so hard to get into my pants." If she doesn't respond much, looks away, doesn't say anything/murmurs, she's probably not interested. If she is eager to talk about it, then you know she's interested. Either way, one of the best ways to make a girl interested is to show interest yourself, and if that doesn't work you might as well move onto the next girl.
But remember, if you meet a girl for the first time, don't be afraid to make comments about how good she looks, etc. As long as you keep your confidence and don't degrade yourself, nothing bad will come out of it and it's the first step to making her want you.
EDIT:
There is a huge misconception as I can see from your response samurai.
Showing interest doesn't make you an AFC. Telling a girl your feelings does. Putting yourself on a lower level does. Assuming the role of being subordinate does. Spending money does. These things do not reflect the confidence which must be present. You can be attracted to a girl and not care whether you get to know her.