He doesn't understand why his partner doesn't respond but he does let those hands guide him. He smiles though as he feels the familiar accessories and finally the face. It is definitely Lan Zhan.

"Why didn't you say anything?" It isn't really strange for the man to be quiet but he would have at least let him know he was there with some sort of speech. Suddenly a frightening thought strikes him and his fingers move to Lan Wangji's mouth, silently concerned that someone might have cut out his tongue. He has seen enough of that recently. Certainly Xue Yang hasn't also been brought to this place.