If he hadn't been listening so closely, he wouldn't have heard Foreman's mutter, and, to him, it might as well have been an invitation to keep searching for interesting information. Apparently, he'd missed something crucial, and House made a mental note to snoop through Foreman's past, with or without his cooperation.

House entered the apartment first, stepping past Foreman, and scanned the room before beginning a thorough search. Spacious. Not exactly a "warm and fuzzy" place, though. Industrial decor. It seemed to fit for Thirteen; even her place seemed "detached". As he did a quick sweep of the apartment, he heard Foreman mention something about a lunch date. Right on track. Again. He wondered if Foreman had done his own research, but for another purpose. His on-the-money guesses could have been because he'd already known, because he was interested himself. He wondered if Foreman had ever actually been here before, but he refrained from asking.

"Same little bird been visiting you, too?" he replied, without looking in Foreman's direction. When he finally did look at him, he saw Foreman still standing near the door. "I brought you along to help, not watch." He gestured to the room, urging that he start searching with him. He'd get much more accomplished that way, and, right now, he was all about efficiency.