Blaise didn't think anything about his manner of dress. He had always dressed in somewhat of a business casual mode. When the elf let him in the door he took off his robe and dropped it on the floor. "Pick that up would you," he instructed as instructions to clean clothing off the floor did not equate into the giving of a garment the way handing her the robes would have.
As he stepped a little further into the front hall he heard the clicking of heels and couldn't help but wonder who else had come to help Millicent with her tasks. When he looked up a few moments later he expected to see two individuals rather than the one. "Heels?" he inquired. That had been something he'd always associated with Daphne and Pansy, definitely not Millicent.