Here's how the metaphor works:
* Newspapers are designed to be easily understood. They present information clearly and concisely, making it easy for readers to grasp the main points.
* The phrase compares a person's mind to a newspaper. It implies that the speaker can quickly and easily read the "information" within that person's thoughts and feelings.
Essentially, the phrase means that the speaker can easily see through someone's facade and know exactly what they are thinking and feeling. This can be used in a positive or negative way, depending on the context.
For example:
* Positive: "I can read you like a newspaper, you're clearly excited about this new project!"
* Negative: "I can read you like a newspaper, you're trying to hide your disappointment."
It's important to note that this is a figurative expression and shouldn't be taken literally. No one can truly "read" someone's mind, but this phrase is a way of conveying that someone is very perceptive and insightful.