The setup at immigration has it so the officer can't see what you pushed. Yes you can see them, but they don't know what you pressed -- at least at every Airpor

The setup at immigration has it so the officer can't see what you pushed. Yes you can see them, but they don't know what you pressed -- at least at every Airport in China I've visited. This 4 scale smily face is pretty common in China, the started over 10 years ago. Even at places like banks and government agencies. They were a key part in how China got it's day to day corruption under control. People would pay bribes for service but leave a poor rating. And while corruption still exists in China, it is no where as in your face or omnipresent as it once was.