He has no skill at hiding his emotions -- why would he? -- and relief crosses his face. He nods.

His burned clothes were cast aside somewhere and the idea of putting them back on makes him a little queasy. Besides, he has no reason to be self-conscious; Claudius approved of his body well enough last night. He gets up and comes over to the desk naked to look curiously at Claudius' instruments.

"What dost thou?"