Share a Smile Day
Share a Smile Day is held on March 1. This event in the first decade of the month March is annual. 
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Broadly speaking, there are three kinds of smiles: smiles of reward, smiles of affiliation, and smiles of dominance. A smile may be among the most instinctive and simple of expressions — just the hoisting of a couple of facial muscles.
Brilliant smiles radiate joy, excitement, confidence, health and vitality. Your smile plays an important role in the happiness of your everyday life. Smiling activates tiny molecules in your brain that are designed to fend off stress. These molecules, called neuropeptides, facilitate communication between neurons in your brain. Also, when you smile, your brain releases dopamine, endorphins and serotonin.
Similar holidays and events, festivals and interesting facts
World Tailors Day on February 28 (international);
Floral Design Day on February 28 (Massachusetts Governonr William F. Weld proclaimed this day in 1995);
Public Sleeping Day on February 28
Tooth Fairy Day on February 28
Open “That Bottle” Night - Open That Bottle Night on February 28 (A comic holiday is celebrated on the last Saturday of February);
Professional Engineer's Day in Canada on March 1 (Month of March);
Journalist's Day in Nicaragua on March 1
Accountant Day in Colombia on March 1
World Compliment Day on March 1 (appeared after many successful editions of “National Compliment Day” in the Netherlands);
Horse Protection Day on March 1 (Horse Protection Day was first observed in 2005 when it was founded by pet lifestyle expert and animal behaviorist Colleen Page);
Plan A Solo Vacation Day on March 1
Namesake Day on March 1 (is celebrated every first Sunday of March);
National Procrastination Week in the UK on March 1 (the goal is to leave unnecessary tasks at a later time, provide mental and emotional relief, help reduce stress and anxiety);
Theatre for Life Month in USA on March 1
Professional Pet Sitters Week on March 2 (First Full Week in March);
Engineer's Day in Croatia on March 2 (is celebrated on 2 March as a tribute to the date in 1878 on which first associatian of engineers was established in Croatia);
Old Stuff Day on March 2
Dr. Seuss Day on March 2
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