if you go in talking about rick and SLP and shit and you're wearing shit from the mall one of two things will happen
1. she will actually know about fashion and either think it's cute in a pathetic way or stupid that you're trying when you obviously don't know
2. she will actually not know shit about fashion outside the mall and you will bumble trying to readjust to the normal level
just don't do it fam
go listen to some indie shit /mu/ likes
here give this a whirl
https://www.youtube.com/watch?v=xSi_FE52TAYif she knows it (i think most tumblrds to) it's an album you can talk a shitload about
if she doesn't she's probably going to be vapid enough that you can play it for her and she won't listen to the lyrics and you can bang to Two or something