How to talk to a girl? Like a god damn man! 
You don’t “have” to understand girls, you need to feel with them.
lol mizwizzy - you crack me up!
This is something you’ll never see me do ! 
Why, oh Why! Because that means, following your logic, talking to a man like I talk to a girl!!! Get it! 
I’m sorry to tell you mizwizzy, but you need a thread of your own: “How to talk to a boy?”
Because, let me tell you: We, men are SO MUCH different from you, women (and vice versa, of course), that none of us will ever really fully understand.
Why, oh Why? Because, yes, we can understand each other on day to day basis, but the boy was asking what to do when he likes a girl. And by simply being blunt and dry, he’ll never get a girl he likes to be interested in him.
One thing women in this thread tried to tell you: you don’t need a set up. But don’t expect them to hand over the key !
Just approach the girl (in the most obvious way possible, I may add
) and if she likes you, the place or the words have less to do with it. Otherwise, you may need to work harder if you really want the girl: be persistent, be inventive, be smart, be funny. In your own way. It’s bound that some girls will find it attractive. And some will not. But hey, that’s life, my boy! 