Ermmmm this kind of things i think it is better if the gal haf
seen u b4 or some impression of u...(good ones ofcos) then maybe u
jus go for the straight approach... thats the best method... dont
go for crappy lines like "haf i seen you some where b4??"
i think best is if u jus walk up to her a start a conversation...
"hey i haf seen u around here sometimes, can i get u a
drink?"
ahahah jus my 2 cents worth..... 
