Oi, Rin-!

[She'll take more shit from you than she will from most people, Tousaka, but trying to claim greater privilege wrt Hakuno is well over that line....

...of course, then she notices something more surprising than you being a butthole (because, lbr, you're a butthole all the time)]

...what did you do to your hair?

[She just... stares. For a moment.

And then her face splits into a really shifty-looking grin.]

...oho. I see. No need to say it! I made that strong an impression [wink wink nudge nudge] that you seek to emulate me more fully. Indeed!

[That makes no sense you complete idiot.]

In that case, I approve!