Well if i would be in your place, i probably would suggest to chicks to start little party at their place and then go to club.I ve done it the way that, i hang out with chicks at their place, bring some wine bottle with me or something nice, only thing that i never done this as a date. Cause my tactic is first getting alot of girlfriend around me, and then work from inside out. I am social and outgoing, and when i party with girls that ARE friends, their friends sees me as "good dog"

, and thats not a bad thing cause if there are potential targets i start flirting so they wont get too much into "good buddy" mood. anyway this is going off topic. Too bad your not a club person.
Try to find place where they both arent all the time concentrated on you,
so the other one who you arent talking to would have some to spend a time one, talkative friend is good idea, but it should be a good friend and not cockblocker.
Also i know for sure that while you talking to other the other one is listening too, so play it wisely.
ps. this is how it works for me, it might or might not do you any favour. but i hope my posts give some ideas too. in the end you need to realize and recognize situation by yourself.
be independent and confident
say that you apreciate art, and respect people that actually can do something beautiful looking, cause your own hands are so big you cant do anything with them, only wood crafting (this is about me).
but you enjoy conversations and meeting new people..
-Mr. White