Historical clue formulations

• "Say cheese!" — 2026-02-03
• Upside-down frown — 2025-12-30
• "Turn that frown upside down!" — 2025-10-12
• Something said before a click — 2025-05-16
• Cry before a shot — 2025-03-22
• Say "cheese" for the 48-Across — 2024-07-08
• What you do just for grins? — 2023-09-21
• Many an emoticon — 2023-03-18
• Directive before "You're on 'Candid Camera'" — 2022-01-05
• ), when it follows :- — 2020-11-22
• "Say cheese!" — 2018-06-03
• "We shall never know all the good that a simple ___ can do": Mother Teresa — 2017-12-20
• "You're about to be photographed!" — 2017-12-08
• "Say cheese!" — 2017-02-19
• Expression in a toothpaste ad — 2016-03-20
• "Peace begins with a ___": Mother Teresa — 2013-12-16
• Prepare to be snapped — 2012-11-16
• What "cheese" produces — 2012-02-14
• "Mona Lisa" feature — 2011-08-21
• Cry before someone snaps — 2011-04-08
• "Candid Camera" request — 2010-12-28
• Say "cheese," say — 2010-12-12
• "Say cheese!" — 2009-06-29
• Word said before someone snaps — 2009-01-04
• Photographer's request — 2008-04-14
• Photographer's request — 2008-02-11
• Beam — 2007-09-18
• You might crack one while playing — 2007-07-17
• Measure of pleasure — 2007-04-28
• Prepare to get shot? — 2005-03-02
• Say "cheese," say — 2004-12-21
• Use one's zygomatic muscles — 2004-10-15
• Grin — 2004-01-12
• Request before a click — 2002-07-23
• Word before a snap — 2002-07-04
• Mona Lisa attribute — 2000-10-19
• Put on a happy face — 2000-09-11
• Photographer's request — 2000-06-12
• Lips service? — 1999-08-29
• It's heard just before a click — 1999-07-14
• "Look happy!" — 1998-12-01
• Photog's request — 1998-11-02
• Show one's pearly whites — 1998-07-30
• Photog's request — 1998-07-01
• Winner's look — 1998-05-24
• "Get ready for the camera!" — 1998-03-08
• Model's asset — 1998-02-05
• Look favorably (upon) — 1995-12-15
• Put on a happy face — 1995-11-12
• Photographer's request — 1995-05-15