they used to say in the ’70s English Have_a_nice_day Have_a_nice_day Have a nice day!" explicated Have_a_nice_day Have a nice day. Have_a_nice_day Have_a_nice_day Have_a_nice_day they used to say in the ’70s Have_a_nice_day Have a good day Have_a_nice_day they used to say in the ’70s Have a nice day they used to say in the ’70s Have_a_nice_day