Awareness

I was told by someone recently that a person is either self-aware or not.  I might agree with that now after further thought.  I've always been aware of my surroundings and have not understood how other people can be so oblivious.  I read a book once that pivoted on the ability of the male to sense the presence of the female.

I think I have that additional sense.  Whenever I'm interested in a girl, I always know if I'm in the same room as her no matter how big the room is.  I don't know if that's a symptom of me being very self-aware or if it's because when I like someone, I really like someone and am always looking for them.  Being aware of your surroundings can easily be interpreted as caring but I don't really see it that way.  If I see someone struggling to open a door because their hands are full, I don't help them because I care.  I help them because I see that they need help.  Would this characteristic translate well to a relationship?  I dunno.