How can you tell if a girl is crushing on you? I think this girl that I know likes me, but I can't really tell.

Derpythegreatandpowerful is right we'll flirt and hang around u always. We'll make sure u notice us. We'll get kind and a little shy around u and drop hints. It's all pretty obvious if ur looking for it.

Since I'm a girl, I can say. You can tell if they like to spend a lot of time around you, if they blush when you do something that makes them laugh, if they overreact things, if they stare at you. Things like that. I know that because I'm crushing, and I know what I do. They'd try and follow you to talk more, they'd make fun of a lot of things to make it funny for you. Well, I know that because the boy I'm crushing on is my friend. If this girl isn't your friend, then I don't See More really know...

I would tell her u like her and see if she feels the same

Does she flirt
(Giggle and act all soppy)

It depends if you like her. Do you? If so, don't wait go for it! If you don't, wait a little while. Maybe you'll developer feelings for her. TBH you need to be direct to find out for sure. Ask your friend, to ask her friend, to ask her if she likes you. It's best to have all the facts. Good luck! (And may the odds be ever in your favor)

How do you think you know?