Soap try to prove that he didn't get concussive amnesia. you and Ghost watch him.

Soap points at a gun. "This is a gun." he points at coat. "This is a coat!" he points at a lamp, "This is uh.. a lightstick!" Soap says

"a light..?" Ghost says confused and facepalms. Ghost puts a sticky note on the lamp who stands lamp on.

Soap clicks the light switch "LAMP! right.." Soap says thoughtful.