The Terminator scans the form of the girl, coming to rest on the knife she's holding. Judging from the amount of force she is holding it with, she knows how to use it. That is not acceptable, no matter who she is willing to use it on.

"Yes, I am," he replies. She's given him a reason to finally move and he follows her, hovering close enough to be near if he needs to take the knife away, but far enough that she won't feel intimidate by his presence. "Do you know where I am?"