Honestly? Nothing much. Once the Lord or Lady of the Court has recognized you as one of their own, you're generally going to be left to your own devices. The only time that changes is if they need an agent to help them out with something.

[Hee.]

It's a pretty sweet deal, actually. Being part of a Court that's aligned to the Vigil gives you a little more protection against the Gentry. It also makes it easier to meet other Lost, and maybe make new friends.