Possible Clues:

• Give a broad smile
• Smile while pulling back the lips
• Obviously happy Spanish-speaker's non-Spanish speaker has to go away
• Show delight, in a way
• It shows a lot of teeth
• Crack a smile, e.g.
• Seem pleased with the rig-out and new top
• "... but a __ without a cat!": Alice
• Ear connector, at times
• A broad smile showing the teeth