There's a website with loads here
. Some of them might actually work on me! I like "Walk up to a girl, hold out your hand and say "Would you mind holding on to this for me while I take a walk?"" and "Hey you almost killed me! (what did I do?) I saw you and forgot how to breathe."
My male friend was listing a few the other day and asking which would actually work. All the girls agreed that the best one is that coke ad where he pretends his phone is ringing and then opens a bottle of coke, answers it and hands it to her saying "It's for you". So cute! My friend went straight to the shop to buy some!