its always hard to give advice when you have no idea about your relationship with this girl.
if it was me id go for something like "is that the girlfriend you were going to introduce me to?" but if you dont know her very well it might not work out, but if you've spoken to her a little bit it will work. it shows cocky funny and also shows disinterest, so yeah, its basicaly a neg.
if you dont know her yet and havnt really properly opened, id go for something like "you got all the anwsers on your phone?" and if she plays along go "wow! im not sure whether that tells me if your smart or not?" (this can set her up for a qualifier, if she qualifies herself as smart, you've worded it so shes smart FOR YOU. so many great ways to elaborate on a qualifer like that.
if she doesnt play along you proberly did it wrong, and needa work on body language and vocal delivery, but i havnt tested that specific line since it was of the top of my head, so if she goes "whats it to you?" or something equally as bad. just go like "wishful thinking, cant hate on me for wanting in on those anwsers, sneaky bitch"
but again, delivery is important, i can get away with saying that last line if i emphasise a jokey-manner with the last part.
let me know if any of this helped, and if your feeling generous hit me up on some reputation
