The way he turned his head made her grin a little, though she was surprised at his age. She realized she shouldn't be, after all Rosie wasn't any older, but the idea of underage witches and wizards--wizards in particular--just amazed her. No, she wasn't much older, barely much older, but she was legal, they were not.
Her eyes went wide at his continued answer, "what? Really? I-" she paused to shake her head. "No, no, I can barely get a few meters off the ground; but really?" It probably meant Eleanor would be there, and Terence obviously would. She missed them both too much and adding Quidditch to the mix...
Laughing a little self-consciously, Silas did shake her head as he commented on her surprise. "I thought," and she stopped, biting her lip before continuing on in the new vein. Her mouth opened to speak up when the call for dinner came. "Oh- after dinner?"