well i dont know, but maybe u should have just talked to the girls with the camera. like ask em "is it this button that i need to press..etc" even if u know how to work that particular camera. u should have really said something to those girls maybe just something casual like "r u having fun?" "where u guys from?" and then ask them for their names, maybe say something else and then just jet and continue what you were doing...just have a short friendly conversation with them, not trying to pick them up or anything. who knows they might have thought u were a friendly guy and then after a while of u standing around might have pulled u into their dance circle. i can give u an example of one of my club going experiences a while back at club vatican. there were these two hot chicks (concordia chicks), i dont smoke, but my friend does, so they asked him for a smoke, but this guy is total afc, he just pulls out the cigarettes without saying anything, and they just continue to stand around us, so i decide to save the situation and ask them for their names and stuff and have like a conversation...but i think i made a mistake i went to mack on the hottest one and kinda left the other one standing, my friend of course didnt even try to engage (what a loser)..they were doing all these assgrinding floor bumping dance moves and maybe i could have taken it farther if i actually knew how to dance, but no...so i kinda lost them..oh yeah and second thing a mistake i make often..i always engage the hottest chick and the other chick was just standing around, so that's not cool, engage the less hot chick, she will be more receptive and it might turn out that the hotter chick is gonna get jealous and try to have u for herself...but i dont know..give yourself a goal to turn every random chance encounter with a girl into a short conversation about anything...u should get more confidence
