Ok, well at this outlet mall in my town its not very crowded, anyway this is kinda like a approach but your in a way loring them to you, Example first of all you must get in front of the girls a good like 20-30 feet or sorta close. (heres where im having trouble in my plan) so your in front of them right? well now lets say you gotta get your phone or wallet out, while in the process of this you "accidently" drop something (im still thinking what i should drop cuz it should be nothing of value to me and i can just waste it) so now thats its dropped you wait like a few seconds and wait for one of the ladies to come over and say " hey, you dropped this" BAM your in.

but i do have flaws in my plan
1. the girls could just walk right past the object i dropped
2. you must find a set of girls that you think thats all attractive cuz the girl that picks it up is most likly the one your going to talk to
3. or even if the girls arent paying attention to whats in front of them or if they dont see me dropping the object and see the object and have no idea thats its mine (unless your really close to them)

You should never use gimmicks to open girls, simply walk up state your intention in a non-threatening and polite friendly way and introduce yourself with a smile.
Of course I'm not confident enough, but I will after I finish the "improve myself" phase.