Why

I think that if you believe people like you when they really don't, you are in for a rude awakening! lol If what you are asking is a matter of acting with confidence - you know, walk and talk with the confidence of being a well-liked person - then, I agree. People are attracted by confidence and you'll feel better about yourself if you project a self-image of being liked and respected. It's not a good idea, however, to delude yourself into thinking that someone in particular likes you in a personal way, if they don't. If someone doesn't like you, for whatever reasons, sometimes positive energy from you will smooth out some of the rough spots. But don't expect miraculous, overnight results!

I don't know what you are saying here, but I know believe like me, and I don't care if some don't. But frankly I have never had much experience with people that don't like me. I am a likable person by nature.