You, most often, have to do the approaching, if you want anything to happen in your life, romantic relationship-wise. So then you are on the receiving end of trying to figure out whether girls reciprocate interest or not.
Say you like someone. You tell them. They don't give you a clear idea of how they feel about you, or how they feel about your feelings towards them.
Think in these terms:
- How important is it for you to know this?
- How much time can/will you give them?
- Is it better having some contact with them, developing a friendship with them, or waiting to see if they will develop feelings for you... or would you always rather know immediately, cut your losses, and not spend more time waiting or hanging out with them?
- When is it worth the gamble, and when is it just annoying and a waste of time?
- Do you always feel one way, that it falls one way, typically, or is each situation different/unique?
- Will you ever be content with being just friends?