[Very. It's not something she's unused to, but Ran's actually a chummy-pretty-quick type; it might not be long before she moves from being Tohsaka to just Rin, if she seems cool with it. For now, she gestures down the hall with a tilt of her head for Rin to follow and starts walking.]

So did you find anything in your room? I pulled mine apart just in case, and found, uh...

[She reaches into her pocket and produces an empty syringe - which she decided to keep, apparently - then puts it back after a few seconds assuming Rin doesn't want to take a closer look. She also lifts her other hand, showing the locked briefcase she's carrying.]

I thought I oughta find somethin' more delicate to break this open, since if I do it myself whatever's inside might get broken.