I got this trophy last night. It popped up and I honestly didnt even know what it was for. Wasnt even trying for it. --- "The Vita sold six times more than the 3DS so far" - n0matter XBL: DanGogh78, PSN: DanGogh, NID: DanGogh
Supposedly the lines she says when you talk to her with a costume on, as well as the when you talk to a party member and she chimes in count. Yu's costumes alone make for a good 20 or so, and I think there's around 10 (probably more) where she gives her opinion on someone elses.