Oh, there she was! "Hello, Professor," Kiri said with a friendly smile. She was about to enter the Head of House's office when another person spoke, just behind her. If the common room had not been that quiet, Kiri wouldn't have heard them. Their voice was so low and sounded so shy, she wasn't even sure whether it belonged to a boy or a girl.
She turned around.

Huh. Odd.
The boy - it was a boy - looked as if he could be her own age. Why was he so nervous? Then Kiri realised that she had never seen him before. So maybe he was new, a transfer from some other school. "One moment, Professor," she called out over her shoulder.
"Yes, I have a meeting with Professor Lupa," she told the boy apologetically, "but we should be done in a few minutes. 's about Quidditch." She indicated the badge on her robes. "You should think about trying out!"

With a faint smile, Kiri turned around and entered the office. She closed the door behind herself. "Thanks, erm... I'll try a coffee, sure." She took a seat opposite the professor.
Wow. Coffee! That had sounded so grown up!
Kiri wouldn't say no to an apple slice or five, either. "Mmm, theesh..." she swallowed, "these are good." Kiri held up the apple slice for inspection, which had been cut in half sharply by her teeth.