You already did. =)
I will fair off if i stick to my dreams
the captain told the crew to knock off.
He tried to ward off the evil spirits.
He was off of the medication for nearly a year now.
They meandered off the trail.
he was hanging off of a cliff.
Yes, you should use a comma to set off a direct address in a sentence. For example, in the sentence "John, can you please pass the salt?" the comma after "John" sets off the direct address.
Do you use commas to off set the phrase as well as
i was rip-off when i purchased the flowers this morning.
Better with light off
The show came off with eclat.
She functioned off deceit and lies.