The delight in Nie Huaisang's eyes is unbridled. He doesn't let Lan Yalun get away this time, grabbing his arm so he can properly thank him with a low bow of his own.

"You're giving me gifts! Is this to help me study?" Copying texts, probably. He hasn't been caught doing anything wrong this time, but it might one day happen. Lan Yalun is probably preparing him.

But that doesn't explain the bird. He grins at him.