Even though she's curious about what's about to happen, Madoka is still trying to do her best. Trying to stay still, to not fiddle or move around too much, in case that might have some sort of negative effect on what he's about to do.

But then Romeo is pointing at her, and Madoka is looking right back at her, her eyes wide. She only manages to surpress a startled yelp by moving her hands in front of her face when he speaks up.

Ah, wait, there's a faint memory in her head. Hadn't he done something like this too, back when they were fighting in that super cold place..

"W-What did you do?" She asks, making sure to keep her voice down to a whisper.