Oops, it doesn't look like 'handshake handshake day' is a national day..

Other days

coffee

Coffee Day
youth

Youth Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
raise awerness of zeus

Raise Awerness Of Zeus Day
boyfriend

Boyfriend Day
me

Me Day
artists

Artists Day
believe

Believe Day
tell a fairytale

Tell A Fairytale Day
promposal

Promposal Day