Smartphones can tell when you're happy because they have a special camera that looks at your face. When you smile, the phone sees it and knows you’re happy. It’s like having a friend who always watches your face to see how you feel.
Examples
- It notices when your eyes get wide when you're surprised.
- You make a frowny face, and the phone knows you’re sad.
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See also
- How do large language models like ChatGPT actually learn?
- How do large language models learn to talk like humans?
- How Do Smartphones Know When to Vibrate?
- How Do Smartphones Know When You're Talking to Them?
- How Do Smartphones Know When to Wake Up?