Apparently calibration is a good thing but sometimes people mask their "rationalizations" as "calibrating". I want to ask you people something for the sake of avoiding that..

Last week I was with a friend and two sisters. The one I am interested in seems to hate my friend's guts, I got a few IOIs and handled a couple of shit tests excellently. I'd say it was one of my finer moments.

But I didn't get her number because it felt weird to do that with her sister present. Despite that, a hangout will be scheduled through my friend and the other sister.

I feel it was a stupid move not to get her number so I am looking tk remedy that ASAP. How should I go about it at the next meetup?