In order to subscribe to an author go to their profile and click ‘Become a friend’. When a new dialogue window pops up, read the Terms of Service and the Agreement between the Subscriber and the Author, and then check the “I agree” box. Then click ‘Become a friend’.
You’ll be redirected to the payment system site where you’ll need to enter your bank card information and pay for the first month of the subscription. If the author provides a free trial period, the payment terms will indicate that $0.01 (for 3 days or 24 hours) will be charged to your card, after which the full monthly subscription amount will be debited from the card at the end of the trial period.