Believe or not, KStew's mouth actually CAN curve upward! Here's the complete guide to her latest grins.
The "I'm Balenciaga's newest spokesperson" smile
Image by Francois Durand / Getty Images
The subsequent "I'm the new face of Florabotanica!" smile
Source: youtube.com
The "Charlize Theron would jump off a building for me" smile
Serious declaration of love right there, Charlize.
Image by Peter Kramer/NBC/NBC NewsWire / Getty Images
The charming "On the Road" smile
Image by IFC Films, Gregory Smith, File / AP
