Related Clues:

• The parentheses in :) :) :)
• Reactions to cheese?
• Cheese alternative?
• Expression in a dentist's ad
• Directive before "You're on 'Candid Camera'"
• Show off one's canines?
• *Four laps on a track, say
• What joy brings
• Graphic novel by Raina Telgemeier about a girl with braces
• What the ')' in :-) represents
• 'Say kimchi!'
• What you do just for grins?
• Happy faces
• Show teeth, perhaps, first one extracted in a figure of speech
• Happy face