Firstly I saw a quote that really fit the subject well.
"what do you call a vampire with fangs.... A poser" such is true in recent days I have been asked over and over how someone could be turned into a vampire. The kinds of vampires who drink blood are very far from being real, aside from those who hype themselves up thinking they are doing something magical in occult pagan rituals.
The kinds of vampires that do exist are "Psychic Vampires" these kinds are relatively well known and they take energy from another for one of many reasons, a few reasons of which are; they are incapable of making it themselves, they find it easier to simply take it from another, or out of pure need. Often times those who are Psy Vamps starting out dont even know they are doing it. The a few methods that energy taking is done are.
"Contact Feeding"
Is Feeding By Touch. Hugs, handshakes, kissing or sex are all methods energy can be taken from someone who is a psy vamp.
"Tendril Feeding"
From my own experience Psychic vampires have kind of tendrils of psi often times coming from their hands and third eye. Its a more advanced method that has been done by those who normally know what they are doing that allows the vamp to remain at a distance or even in the astral to take the energy they need. Though most stick with the laying on of hands method.
"And empathy feeding"
This is the one I tend to have as my emotions seem to be lacking greatly of my own so I seek out others to comfort and cajole to a calming state of mind and drain off a bit of their emotional energy so I can feel. Such a process makes them feel better & allows me the ability to cure my own lack of emotion.
Anyway for all those looking for: Immortality, pale/white skin and pointy fangs keep to twilight because your not going to find it in reality. (on a side note I would love to introduce Edward to Blade)