Harry steps in and looks impressed. Really, it's going to be a very long time before he stops being impressed by how clear mirrors are here, and these ones are so big!

(Because Harry, rather like a small terrier, doesn't ever totally grasp his own height in comparison to others, it's also the first time he really notices how much taller Enjolras is. Hm.)

"O, 'tis very nice. Have we need of aught but these?" He gestures with the walking stick.