When we celebrate world Hello day ???????????
Aditya4147:
on 21st November hello day will celebrate
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21 November
World Hello Day is a secular holiday observed annually on November 21, to express that conflicts should be resolved through communication rather than the use of force. Participants verbally greet ten people or more on that day as an expression of the importance of personal communication in preserving peace.
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21 November
world Hello day
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