[Around the corner of a building, or from behind a tree, depending on where Anna appears at, Stiles has been passing by and happens to hear first the nervous mumbling and then, yep, the unmistakable sound of an unsuspecting new arrival getting swarmed by the WC ladies, great.
He has enough sympathy for how annoying the ladies are, so he calls out, while rounding the corner:]
Yeah, that's pretty much the way to go with them, you're not gonna get anything reasonable out of them anywayyyyyyyyyyyyyyyyy--
[The 'y' seems to go on and on, and the reason is he managed to finally get close enough to see Anna. And wow, that is trippy.]
Uh, wow, okay, so you're totally the ginger-haired version of Blonde, Polite and Reclusist, any chance you're related?