As the title says, there is a girl that I like... I know that she likes me as well (she makes it obvious). But there is one problem, I can't seem to talk to her about it

Yet I have never had any real girl trouble before... I know that I have nothing to lose if I express my feelings to her... but for some reason I can't do it... whenever I try, I chicken out and just start a regular conversation with her...

So can anyone please help me with my situation?...