How to Smile Naturally in Photos: The Difference Between Real and Forced

Why Forced Smiles Look Forced

When you smile on command, the muscles involved are different from those used in genuine amusement. A real smile involves both the zygomatic major muscle (pulling up the mouth corners) and the orbicularis oculi (crinkling the outer eye corners, creating crow's feet). A polite or forced smile typically only recruits the mouth muscles. Viewers — and cameras — detect the difference immediately. The eyes don't join the smile.

Duchenne's research in the 19th century documented this muscle-group distinction; contemporary neuroscience has confirmed that Duchenne smiles (genuine, whole-face smiles) and non-Duchenne smiles (polite mouth-only smiles) are perceived as different by observers reliably and rapidly. In portrait photography, this distinction is the difference between looking happy and looking like you're trying to look happy.

The "Think of Something" Technique

Rather than physically forcing a smile, actively remember or imagine something genuinely pleasurable. It doesn't have to be enormous — a recent meal you loved, a specific moment from a holiday, your dog greeting you. The physical response to genuine pleasure (even remembered pleasure) recruits the eye-crinkle muscles automatically in ways that deliberate smiling cannot. Photographers often ask conversational questions not just to pass time but to produce this state — answering "what was the funniest thing that happened on your last holiday?" moves your face through a genuine, unforced emotional response that the camera captures.

The "Pre-Smile" Technique

A technique used by some portrait photographers: before a full smile, hold a very slight, almost invisible upward curve at the mouth corners — a "Mona Lisa" expression. Then, on the count of the shot, let the full smile arrive rather than placing it. The transition from micro-smile to full smile creates a naturally flowing expression that reads as genuinely happy rather than positioned.

Closed-Mouth vs Open-Mouth Smiles

Both work; it depends on context and personal preference. Open-mouth (showing teeth) smiles read as more exuberant and immediately joyful. Closed-mouth smiles read as warmer, more private, and more sophisticated. Neither is objectively better — the question is which matches the overall tone of the images you want. Many people who are self-conscious about their teeth default to closed-mouth smiles; if this applies to you, tell your photographer and they'll work with that preference throughout the session rather than nudging you toward open-mouth expressions.

Don't Hold Your Smile

A photographed smile works best captured at the beginning of its expression — as it arrives — rather than held in position. Holding a smile for several seconds while waiting for the camera fires produces exactly the strained, effortful expression most people dislike in their photographs. Professional photographers fire the shutter quickly, often mid-movement, rather than asking you to maintain static expressions. If you're waiting too long for the camera, you're probably in the wrong rhythm — check with your photographer whether they want you to hold still or to be in motion.