The Doctor allows himself a smile, a small breath of relief escaping at the Major's...well, not his praise, but his acceptance of the situation. Though he is glad to see how pleased the Major is with it, as well.

To please is what the Doctor sets out to do after all. At least most of the time.

"My thanks, sir."

He straightens himself up a bit, tugging at the corners of his own jacket, face a tight little line.

"Do you think they'll fall for it, sir?"