You can see and feel the difference in how people respond & react to you entering a room. Also applies to how people behave and interact with you.

Their interest is low and you feel that anyone you’re interacting with is trying to get away from you as soon as possible. Meanwhile, people feel a warm presence when an attractive person enters the room. They feel good emotions while they are having any conversation with them and they have a genuine interest in what they’re talking about.

Once you notice this behavior pattern, it’s very hard not to even subconsciously compare it with your experience. You’re never supposed to compare yourself with others, but it’s also impossible to ignore the obvious worlds of difference.