People are more interesting when they are interested in you. By the same token, they would find you more interesting if you are interested in them. I have unwittingly confused myself by coming up with my very own chicken and egg theory. Who starts getting interested first in order to trigger interest in the other person? It could happen spontaneously, or one person could start first and if interest vibrations could be visualized and plotted out on statistical graph then zig-zag lines would be bouncing back and forth from one person to the other, assuming the other is also, coincidentally, magically, interested.
This is basically an attempt to explain (to myself) the mysterious phenomena of why most of my friends are male.