I'll give you guys an easier one I doubt anyone pulls that shit off. THis one only works in a similar setting you have to be sat at tables in a bar it won't work at a club or party.
But anyways if your out and see a group of girls sat next to you at a table and they are eyeing you up start up a game of rocks paper scissors. Make it somewhat obvious but don't get too into it but make sure the girls you wanna approach can see you playing rocks paper scissors. Immediately when you stop playing and it ends the loser has to approach the girls right away. There is no pickup line just say 'hi' and let them be like 'did you guys just play rocks papper scissors for who has to come hit on us?' Trust me you are in already its a boss move but make sure they notice you playing.
Group approaches are for bitch ass men it shows strength to hit on a group of girls alone and leave your friends there to smile and make eye contact and laugh with them while you kick game solo to a big group.