Related Clues:

• Grin
• React to "cheese"
• Something that's struck
• Ask, as a question
• Prepare for a photo
• Act the model
• It's sometimes struck
• Raise, as a question
• Say cheese, maybe
• Mug for a shot
• Use one's zygomatic muscles
• Sit for a shot
• Alfred E. Neuman feature
• Say 'cheese,' say
• Amused look