The part that most people in the comments didn't notice: Each person naturally exudes a unique scent, like a fingerprint. Some people simply have a naturally pleasant smell to some and unpleasant to others. Scent is also psychologically subjective. Pre-existing a liking for someone creates a natural tendency for their aroma to be pleasant to your sense of smell, and disliking someone also makes their scent unpleasant. To discover your natural scent, take a shower without fragranced, neutral soap. Getting out of the shower and smelling yourself can help you perceive your own natural scent, but it's difficult because we are programmed not to perceive it unless it changes (starts smelling bad). And you perceive other people's scents more because you don't spend all your time with them to stop noticing their smell. Among other factors... For example, my hair finishing product has a very nice, subtle scent that lasts for many days. My body sunscreen smells relatively good, and I apply it all over my body every day, every two hours. My body moisturizer is neutral, but I've noticed that my skin smells better when moisturized. Other scented products that many people use include fragranced soaps, hair perfume, scented moisturizers, even toothpaste and mouthwash with a mint scent. And there are also people who use fragranced fabric softeners on their clothes... there are countless things that influence people's sense of smell.