Narissa knew the hotel even though she had personally never had any reason to stay there, and she used her parents' floo powder to get herself there. It wasn't that big of a deal in her mind. New people were fun and exciting and she knew that she would be able to be of some sort of help. The new person, whoever he was, would need to know how to get around and she was very very good at helping. Also at finding things, she thought as she emerged from the floo, shaking the soot from her hair and brushing off her clothes.
After she was cleaned up, she looked around curiously, blue eyes flickering from person to person to find the one that seemed out of place. It was much easier than she expected honestly. She came from money, and so while she didn't judge by it? She knew when someone didn't. She saw the taller boy and smiled, heading over with a brilliant smile.
"Wan? Hi, I'm Narissa. You can call me Nari though, everyone does." A greeting with a smile was always best, she thought.