Click on the GROUPS tab to view the different covens you'd like to join. After reviewing them and finding one you think would be right for you, go to their page and click on the button [Accepting Applications] near the top. Click on [Join _____ ] .
In addition, some covens have a survey that you have to fill out and send to a member or leadership. Just copy and paste the survey into their mail (to be found by click on their name and clicking the MAIL tab) and fill it out before you click send.