what do you call a person who can sense that someone is there and or that someone is looking at them without even looking

A person who can sense that someone is there or is looking at them without directly seeing them is often described as having "a sixth sense" or being "intuitive." In more casual terms, people might say they have "eyes in the back of their head." Additionally, some might refer to this ability as being "perceptive" or having heightened awareness. In psychological terms, it could be associated with keen observational skills or an acute sense of awareness of one's surroundings.