It's true that smiles are contagious, but not just any smile will suffice. For instance, your worst enemy smirks something awful at you, that's not a fun moment. That's why we've compiled some unambiguously wonderful expressions of happiness.
Inspiration is a stimulating feeling that we seek to motivate us, to continue pressing forward through hardships and to find meaning amidst chaos. What inspires us is sometimes found in the rarest of forms.