Encouraging

Definitions: (1) inspiring with courage, hope, and confidence; inspiriting; (2) generating positive anticipation for success; spurring on; stimulating

Synonyms: animating, cheering, emboldening

Quotes:
• A pat on the back is only a few vertebrae removed from a kick in the pants, but is miles ahead in results. — Ella Wheeler Wilcox (1850–1919) American author and poet
        Note: Nonetheless, sometimes you do need a kick in the butt – as hard as necessary; as gently as possible.
• Ah, Hope! what would life be, stripped of thy encouraging smiles, that teach us to look behind the dark clouds of today, for the golden beams that are to gild the morrow. — Susanna Moodie (1803–1885) English-born Canadian author

Celebrated: International Share a Smile Day is on March 1st.