He does the fuck off motion in ASL. Most people didn't know ASL, and he really doubted she did too. She probably could guess what it meant, but hey, power to him for knowing it.

He wasn't sure what he was expecting when he pulled her weapon out from her chest.

Sword...Sword was not something he was expecting. So...now he has this sword he didn't expect to pull out in his hand. This. He can use this in fights. And well even.