People go around saying Hello to even random strangers, in a bid to make this world a better and happier place. I would also be wishing everyone with a smile and a hello. "World Hello Day" internationally celebrated on the 21st of November.
Joining you Leena999 sister in saying HELLO to all, first HELLOfriendssmiley to you and to all my Extended IL sisters and brothers HELLO SAIRAM