Xavier didn't hear the older student approach until he was right next to him. He nodded firmly at the question. "Yes. Some people call me Xavi." tcha-vee, by the way. Not zay-vee. What was with the 'master Rodriguez' anyway? His first name was up there on the board, plain as day.

He watched closely to see the spell the Slytherin used to put up his notice. It would be easier next time than push pins, but whatever he did, he did silently.

Xavi tried hard to keep his eyes from widening in amazement, but he was amazed. As a first-year muggleborn kid, he was pretty sure only incredible witches and wizards could do non-verbal magic. Instead of giving away his surprise he asked "which spell was that?" Information. The more he knew, the more he could do.