She does indeed try not to be too alarmed, but a little alarm can't be helped, can it? That makes no sense at all, and at first she just stares back at him, unsure of what to say. Asking how it works is highly unlikely to get her a satisfactory answer.

'You can...' Tayrey trails off, bites her lip, still watching him closely.

'Why don't you leave them gone?' Maybe there's a rationale she isn't seeing. Maybe it hurts.