1. Observe the card surface: there are bright colors around the real card, and the fake card is gray and fuzzy.
2. Look at the light: when the real card faces strong light, the edge shines slightly, while the fake card does not reflect light.
3. Look at the text: the text of the real card should be straight, and the text of the fake card is oblique.
4. The difference of signature: The real card JM can read the signature clearly under strong light, but the fake card can't read it clearly.
5. Magnetic stripe: When the magnetic stripe of the real card faces strong light, the machine can read the bar code clearly, while the fake card is very blurred.
These are some ways to tell the truth from the false. If in doubt, please consult a professional.