A person who can read another person's thoughts is often referred to as a "mind reader" or "telepath." The concept of mind reading, also known as telepathy, is a popular theme in science fiction and paranormal discussions. It involves the ability to perceive or understand the thoughts, emotions, or intentions of others without any direct communication or observable cues.
It's important to note that, there is no scientific evidence to support the existence of telepathy or mind reading as commonly portrayed in fiction. While humans are capable of recognizing and interpreting verbal and nonverbal cues to infer others' thoughts and emotions, the idea of "reading" someone's thoughts without any observable input remains a subject of speculation and skepticism in the scientific community.