The Duchess of Cambridge usually looks elegant and composed when she's performing her royal duties, but, like every human, she does occasionally drop her picture-perfect grin to reveal deeper emotions. Kate made headlines when she giggled, grimaced, and bit her lip while watching two dramatic tennis games during Wimbledon. Indeed, Kate tends to show off her least "princess-y" expressions when she's doing one of her favourite things — watching sports. Since the duchess isn't too princess-y to play sports, it's only natural that her funniest moments would come while she is watching athletes do their thing! On her 33rd birthday, take a look at Kate's funniest faces from over the years.
