In all honesty, Regina has always been bad at discerning when she should be scared and when she should be curious; the latter has always seemed like a much more important thing to her, especially in places that she's never been. So while somewhere in the back of her mind she considers the possibility that being trapped in briars might be bad, a more pressing question occurs to her.

"How do you move like that?"

She voices the question to the briars, half expecting an answer out of them -- but none comes, and so she's left standing silently, eyes trained on the briars as they slowly move to trap her. Honestly, it might be best if someone just came to get her out before she was closed in completely...or perhaps you got stuck in the maze she allowed them to build as well? If you get nearby she'll turn her attention to you, asking the same question.

"Do you know...what these vines are? And why they move?"

(ooc; If you want more information on her before tagging, you can reference the app-in-progress!)