How to Register
See that little grey box, either next to or below the calendar above, with the time inside it? CLICK THAT.
That will make a new box open up, with fields for you to fill in your name and email address (and optionally your phone number, if you also want to get text reminders on your cell phone).
That's how you register: click the little grey box with the time inside, then fill in your name and email address, and then click the button that says "BOOK YOUR SPOT!"