House let's his cane drop across his lap to grab this hunk of metal with both hands. He's not an expert of prosthetic parts by any means, but he can recognize that someone knew the knee bends, and the same goes for the ankle. Metal. Really.

"How long have you had it?" Because without it, he looks like it was yesterday. How defeatist. House sets his jaw, trying to be helpful in his way. "Two days? Three? It's going to be a part of your life. Treat it like it is. I can tell you how to wash it, store it and where to find repair but I need you to not act like it's a zit that won't go away."