Why couldn't the man have been able to see Bill nodding? But then, Bill supposed, he wouldn't have needed to ask if they were beside a door. Which they were.
"Yuh-yes, s-s-sir," he replied, looking at the lights around the door frame. "Ih-it's luh-hike all the others. A-and I c-c-can nuh-nuh-knock, and l-l-luh-hook ih-inside."
He stepped into the doorway before the man got there, and reached up to rap his knuckles against the door. Whatever it was made out of, it wasn't wood. Some sort of weird metal? Although the sound was wrong. "h-hello? Ih-is there a-a-anyone thuh-here?"
He studied the door and the wall around it as he waited for a reply, and then noticed a weird little screen on the wall. Reaching over, he brushed his fingers over it and the door slid open almost silently. "Sh-shit," Bill muttered in shock, and then walked inside two steps before stopping.
"Th-there's a p-p-puh-puh-hanel on the w-wall b-b-beside the d-d-door, a-and wuh-hen I t-t-touched it, the d-duh-hoor oh-opened. And th-the r-r-room ih-inside j-j-just l-looks like an eh-hempty ap-partment," he said over his shoulder to the man, and hoped the door wasn't about to slam shut on him.