It took a little minute for Bill to hear Abra's knocking, because Richie and Eddie were playing a fighting game on Richie's playstation thing and there was a lot of yelling and button-mashing going on. Bill had had his go (Richie had won, Bill didn't care) so now he was just watching and doodling in his sketch pad.
"A-abra's here," he said to the other two boys as he nipped out, and then ran down the hallway to answer the door.
"Hi!" he said with a grin as he opened the door and let Abra in, "W-we're in Richie's ruh-room, c-c-come on. I can ih-introduce you." He held the door for her, and closed it behind her once she was in, and then pointed down towards the bedrooms.
"D-do you r-r-remember being older?" he asked as they walked.