He gives her a look. Not that he can't tell she's telling the truth, more that he wants her to know that he's got an eye on her and won't put up with that sort of thing.

Then he nods. "It's over here, come on."

As they walk over to the spot, he continues: "We can see about making your lightsaber later, I think. But we're going to have to be very careful about training. It's vitally important no one finds you here."