Who choose to shout the latest slang across the street to random girls, you're not getting any.
She is not your size. Like seriously, mysize? Seriously?!
Nor will she turn around if you shout Oi! for all she know's you could be talking to the dog behind her.
Now man up, and if you like what you see, cross the damn street & talk to the girl properly, noone is going to have a shouting conversation with you across the road.