Katie has been in the process of popping the popcorn and getting it into a big bowl, but at the knock on the door, she hurried out of the kitchen. "Sit, Quaffle!" The dog had been bounding towards the door, but he stopped at her command. She knew he'd be happy to see T, but she wasn't so sure how he'd react to a House Elf, so she thought it better to have him wait.
She could hear T's laughter even before she opened the door, and K was already grinning as she greeted him, "Hey, T!" Her eyes dropped down to the Elf as she said warmly, "Hello, Count Jingleheimer! Pleasure to meet you!"