The fiddling catches her attention more than the door opening, and there's a definitely blink, very specifically for his appearance. He looks very smart in the getup that Delta picked out for him, and after a moment's appraisal, she steps forward.

"Your tie is askew," she points out, before reaching to correct it for him. Ex-military though both may be, it doesn't hurt to have someone else do inspection and catch the little things you missed.