One frame can look perfect. Ten seconds of the same face usually doesn't. Here are the 5 places to look, and the 2 minute workflow to run before you share.
Everyone learned to count fingers, and AI mostly fixed the fingers. What it still struggles with is holding every small detail steady while things move. A hairline, a ring, a shadow, a reflection: each one can look right in a single frame and quietly change 4 seconds later.
So the checks below are about consistency over time. Watch the clip twice, and the second time slow it to 0.25 speed. Most players let you change speed in the settings menu, and on a phone you can screen record and scrub through it frame by frame.
Same rule as with images: no single clue is proof. One odd detail can have an innocent explanation. Two or three together mean slow down. And the honest part, which matters more every month: a video can pass all 5 visual checks and still be false, because it was mislabeled, edited, or it's real footage attached to a made up claim. That's why the last check is the one that never stops working.
Stay on one face for a full sentence. This is where the most work goes, so it's also where the most seams are.
The photographer's note. I've photographed hundreds of faces and none of them were smooth. Real skin has pores, flyaway hairs, and a shine that shifts as the light changes. Perfection that holds still while everything else moves is generated.
Fingers got much better in still photos. In motion, the moment a hand touches something is still the hardest thing to fake.
Why it works. Contact between two moving things is the hardest physics in the frame. A still image can hide it. 30 frames a second can't.
Look away from the person. The model spends its effort on the face you're supposed to watch, so the edges of the frame get the least attention.
Why it works. Pick 2 things that should agree, like a shadow and the light source, and check whether they do. Real scenes always agree with themselves. Generated ones almost do.
Close your eyes and listen for 10 seconds. Your ear catches things your eye forgives, and most people never think to check the audio at all.
Why it works. Voices get built from clean studio samples, so the messy human parts never make it in. If nothing about the delivery surprises you in 10 seconds, that's the flag.
This is the check that still works when the video is flawless, and flawless is where this is heading. It's the one to keep when you forget the other 4.
Why it works. Visual tells have a shelf life and this one doesn't. A video can be perfectly real and still be a lie, because it's old footage relabeled as today, or a true clip carrying a false caption.
You don't need to do this for everything in your feed. Run it when a video wants something from you: your outrage, your money, your share, your vote.
If a boss, a client, a family member, or your bank shows up on video or calls asking for money, a code, a password, or a rushed payment, stop and reach them another way. Call the number already in your phone, not one from the message. Text the person separately.
A voice takes seconds to clone now, and a face takes not much longer. Anyone real will understand you calling back. That single habit protects you even when the fake is good enough to pass every check on this page.
"Share before it gets deleted." "The media won't show you this." "Send it now." Pressure language exists to stop you from doing step 1. When a caption is working that hard to rush you, that's the strongest signal on the whole page.
AI stills give themselves away differently: the light, the blur, the text. That checklist is here: How to spot AI images.