You buy your lottery ticket, say 5 games (I don't know how this shit works, so however many games is sensible).
Then say: Actually, I'll have one more game... I think girls with (insert her eye colour here) and nice smiles are good luck. Can you give me some numbers you think are lucky?
Follow it up with a cheeky "Thanks for those numbers, now can I have your number?"
That shit can't get unrewarded. Women know this.