Quick thought... anyone ever seen the bangin' Karmaloop model actually in the store? I don't go into Boston very often, but when I do and I hit up Kloop, I cross my fingers. As the kid in Angels in the Outfield would say, "It could happen!" Yeah she's fake, but she's also hot as balls. Just thought I would throw that out there.
She's a model, goes to KarmaLoop's spot(offices) and takes the photos just like all the other people on the site.
Unless there's an event going on, your chances of seeing her are slim. I don't really get what you'd do anyways, get an autograph? Just stare at her? If that's the case, you're on Newbury st, theres plenty of other hot girls who are equal and actually better (real) for you to pitch tents. Just look around.