Considering myself to be a fairly cognizant, observant person, I always notice when my heart goes aflutter, or sinks, or starts beating faster. There are several events that make my heart react this way: when I hope for eye contact with someone and then they meet my stare, when someone I like looks me in the eye, when I think of something scary that could happen or something very important that is impending or a deadline that is approaching, when I witness something so nice or so cute that my heart melts in approval. I understand that these reactions are due to the hormonal responses my body has to what my senses perceive in the environment around me.