I would know when I have fallen in love when I couldn’t take my eyes off you.
It doesn’t matter if you just moved your hands or tilted your head to the other side, I would notice even the slightest flip and gesture. Even if you were standing among thousands of people, each with their own mindless heads wandering off somewhere, I would know if you moved a hair. And by knowing so, I would realize I have fallen in love.
I would realize I have fallen in love with you.