When a vampire wants to join a coven, he/she must first break into the Coven's castle, steal the Lord (or Lady's) crown jewels. This skill is required to test how stealthy a Vampire can be.
Next, the applicant offers them the jewels back and has to go and bring a virgin sacrifice to the court, if he or she fails this task, they must be publicly flogged in the sunlight.
If the applicant didn't fail, he/she shares his/her first meal with the coven and are initiated into the ranks.