At the woman, she must be the one in charge, recognizing him, Jack nodded. "Yep, that's me." He picked up a hand to greet the others in a slight wave, "Hey, sorry I'm late." Explaining that he had tried to rely on an alarm on a broken clock was a bit dorkish, even for him, so he just sent them all a sheepish grin.
The atmosphere in the room was surprisingly tense, that he had to notice, and he would have slid his hands into his pockets if not for the fact that the pants had exactly two pockets. One over his right buttcheek, and the other inside the pants fabric over his left. Yeah, not going to put his hands into his pockets at the moment.
Not really sure what to do, he simply ambled near the door and waited to be given directions.