If you don't have anything good you might as well GTFO.
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you really shouldn't pick up... lines or jokes you probably shouldn't try to pick up girls either, unless you are certain you can handle the weight o_O oh and don't forget... if you don't have anything good to offer a girl, yourself included you know what her responce is going to be right ? "GTFO of my face" but most likely in a polight manner though judging by your OP you just might get a five finger, no thanks in your cheek