Answer:
An accurate prediction on a person reading their horoscope for the first time would affect them in a way that they'll continue getting them to read because of how legit it was the first time. They'll be shocked, and even possibly lose their minds. This would make them strongly believe it, and even consider recommending it to others. Some may even be too blown away to the point where they're too scared to return, but this is least likely to take place. Since instead they would be impressed.
