In my world, vampires have a choice. Basically imagine a switch for your emotions. Either you can turn them off and just hunt and kill. Or you can turn them on and feel everything. All our emotions are heightened. Which can be scary to deal with, when we hurt we really really hurt. But it does mean the good stuff is heightened to. When we love, we love intensely, passionately. And it is amazing.
That's a really good start. Probably by the next camp session you'll have done all the classes.