Go to a bar with more women?
If there's only one woman in the ENTIRE bar that you want to talk to, it's either a sh*tty bar or you're creating obstacles for yourself.
Rule #1
No girl - especially one you know nothing about aside from her face and possibly cup size (based on what she's wearing) - is worth more than casual easy effort.
Rule #2
Rule #1 is not an excuse to put in zero effort. Just that you should do a little for a lot of women rather than a lot for a single woman. Your effort should be spread around to multiple women to maximize your chance of finding ones that are actually worth seeing.
Honestly, meeting women in bars has never worked that well for me. I can pull well enough, but it requires a lot more peacocking, hoop-jumping, and all the other stuff that reminds me that I should be spending my effort on becoming awesome, like learning dance, shooting guns, writing the next great American novel, and retiring by 35. Not to say it isn't fun sometimes, but put yourself in situations where you know it will be fun. One girl in the whole bar
Meeting women in dance class, however... yeah. When you're a straight male dancer, that photo the OP posted becomes three hot chicks talkin' to one dude.