how do I get the juice quirk

I would imagine, like so many other things in this EP, your Sim would have to do this juice drinking in public. My Global Superstar went to a lounge after finishing an early gig to have some juice. He's got a Pristine Reputation and is very friendly, besides. He worked on keeping his stardom from shrinking by doing interactions from the +fame menu, which made him interact a lot with the fans that followed him over the the lounge. Apparently, he signed so many autographs that he acquired a Stan. That should prove fun, if not a tad unnerving. I can't wait to see who it is, and how they operate.

I would suggest those of you who wish to acquire the Juice Quirk to drink lots of 'juice' from a public bar/lounge and see what happens.