" Welcome, " said Hagrid, " to Diagon Alley." He grinned at Harry's amazement. They stepped through the archway. Harry looked quickly over his shoulder and saw the archway shrink instantly back into solid wall.
On the departure of the hated proctor, a broad grin would spread over the countenance of the joker, and in a little while the scene would be repeated with variations.
A red horse toy produced by Happy Sister in the city of Yiwu was meant to wear a broad grin, but a factory error meant it hit the shops sporting a despairing grimace.