Why Do Phones Know When You're Looking at Them?

Phones can tell when you're looking at them because they have a special camera that watches your face. It's like having a tiny detective on the screen who checks if your eyes are open and focused. When it sees you're watching, it knows to wake up or do something fun.

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Examples

  1. Your phone knows you're looking at it when your eyes are open.
  2. It uses the front camera to tell if you’re watching a video or taking a selfie.
  3. The little detective on your screen wakes up whenever you blink.

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