Moving quietly for a second, only just realizing how little time that he and Jack really had spent together lately, Sam lifted his head and peered off toward the alley. Holding up a hand, he pressed it to his mouth and stepped toward the wall alongside the building. He slowly reached down and pulled out his gun, useless as it'd be, and began to step forward.
His abilities would have been better at use in the long run. However, Sam wasn't about to blow his cover on the demon blood front yet. Normal was the way to go right now.
As he ventured forward, he was able to hear exactly what Jack was talking about. It sounded like someone's mouth was being held shut, trying to make a noise in a muffled sort of manner.