I do agree that most people are boring if you don't try and figure out what's interesting about them.
Discovering what's interesting about someone is an art. The totality of people you will meet have a much wider variety of experience than you could ever accumulate on your own. When I meet someone new, the first thing I try to find out is what it is they have done that I have not, and then I ask them about that. Often, I learn something new and interesting.
In general, people will never realize on their own what you'll find interesting about them, so you have to seek it out actively.
Discovering what's interesting about someone is an art. The totality of people you will meet have a much wider variety of experience than you could ever accumulate on your own. When I meet someone new, the first thing I try to find out is what it is they have done that I have not, and then I ask them about that. Often, I learn something new and interesting.
In general, people will never realize on their own what you'll find interesting about them, so you have to seek it out actively.