Jack heard the door and the statement from Ianto and shot a look at Owen. Just because. He may or may not have muttered something about secret organisations and people ordering pizza under the name of Torchwood while looking directly at Owen. Or it was a coincidence. Really.
Turning to look behind himself at who just came in, Jack's smile grew a bit. Particularly taking in the appearance of the man in the trench coat. Whoever it was, the man certainly had taste. Jack stopped himself from licking his lips and, instead, settled for a quick once-over. And, to be fair, afforded the other two the same treatment.
Nice. Very nice.
"Pleasure," Jack said, inclining his head towards each man in turn. "Captain Jack Harkness."