Almost everyone has experienced it at some point. You see someone a few times, exchange a brief conversation, or simply notice them from a distance, and suddenly they occupy your thoughts more than they probably should. You find yourself wondering what they are like, imagining future conversations, and feeling excited whenever you see them.
What makes this experience even more surprising is that it often happens with people we hardly know. We may know very little about their personality, values, habits, or goals, yet we feel strongly attracted to them.