At the counter, she met the eyes of the barista, Marcus. He offered a genuine, warm smile as he took her order. In that brief second, Elena smiled back. According to Fredrickson’s research, this was —a micro-moment where three things happened simultaneously:

For that fleeting moment, they both subtly invested in each other’s well-being. LOVE 2.0 by Dr. Barbara Fredrickson

Both felt a spark of genuine warmth.

Elena walked into the bustling cafe, her mind heavy with a looming work deadline. She felt isolated, a common state in a world where we often view love as something reserved only for family or a "soulmate".

Their brains and nervous systems momentarily "synced up," mirroring each other's positive states.