Usage patterns
占いをするto do/have a fortune-telling reading
She does a fortune-telling reading every morning.
占いに行くto go to have one's fortune told
I went with a friend to get our fortunes told.
占いが当たるfor a fortune-telling to come true
That fortune-telling is known for often coming true.
占いを信じるto believe in fortune-telling
I don't really believe in fortune-telling.