Upon hearing the knock at the door, Remus pulled his head from the book that he had been so involved in. He'd been ignoring Sirius's bordom, having chalked it up to the other man's youth. He raised himself from the chair, and upon hearing Sirius talking to someone he wandered to the door.
"Oh, hello... " he smiled kindly as he made his way up behind his friend, not really understanding who this might have been that would have Sirius so excited. "Perhaps you should ask her in?" he said with a bit of a chuckle.