False information usually doesn't spread through outright lies. What spreads most is content with a true core wrapped in a false context: a real photograph carrying a headline that belongs to a different event. That is exactly why it is convincing.
You don't have to be a journalist to work out whether a piece of news is true. A few simple checks before you share filter out most of what is in circulation.
Look at yourself first
The most useful check isn't a technical one: if the content made you very angry or very happy, stop. False information spreads precisely because it stirs up strong feelings. The moment your urge to share is at its highest is also the moment your need to check is at its highest.
Images made by artificial intelligence
Producing realistic fake images is easy now. Hands, teeth, writing, repeating patterns in the background and details such as ears and glasses can still come out wrong. But these clues are disappearing fast; looking at the source is more reliable than looking at the image.