A smile is happiness you’ll find right under your nose.

The line plays on the physical location of a smile—literally “under your nose”—to suggest that happiness is often close at hand and self-generated rather than distant or dependent on external circumstances. It implies that a simple shift in expression or attitude can reveal (or even create) a sense of well-being. The quote also hints at mindfulness: noticing small, immediate sources of joy instead of chasing grander, future satisfactions. As a piece of aphoristic advice, it frames happiness as accessible, everyday, and contagious—something you can practice and share through the smallest gesture.