Select the block you want to register for by clicking on one of the tabs at the top of the events list.
These tabs trigger what events are displayed and what events are available to you during that block.
Click the event you want to register for and follow the instructions.
Log in?
To register for events you need to log in first.
If you just want to browse events, you don't have to.
You can also log in using the menu at the top right