Related Clues:

• Upside-down frown
• ___ and bear it
• Cheshire Cat's look
• Smirk
• It might be foolish
• Mild reaction to a joke
• Show one's teeth
• Crack a smile
• Friendly expression
• Simper
• It might be boyish
• Expression for the Joker
• Wide smile
• Cheshire Cat’s look
• It may be impish