Related Clues:

• Winner's look
• Photog's request
• Show one's pearly whites
• Attitudinize
• Cooperate with a shooter
• 'Look happy!'
• Affectation
• Model
• It's heard just before a click
• Lips service?
• False front
• Cheese accompaniment?
• Photographer's request
• Assume an identity
• Sit (for)