We all know one or two but we may not be aware of them. Do you know someone who everytime you encounter them, you leave drained. They don't even have to be complaining. Maybe you have encountered variety #2. They take just a little energy. This is the person who just wants to touch and their touch feels slightly off. It's not really affection driving them and you just don't feel good afterwards. It's kind of cold.
Most Psychic Vampires are unaware of what they are doing on a conscious level. They have always been able to draw energy off people and like that first drink of blood for the real Vampire, they are hooked. It makes them feel better and they want more and more.
The deliberate Psychic Vampire always makes their presence known. The more psychic you are the more you will be able to identify them. You may alway draw back from this person from day one. I had one who used to visit me and prior to every visit I would see a shadow spider about 6 inches in diameter crawling across the ceiling where it joined the wall. That is a very common mark of the deliberate Psychic Vampire. Sorry, no bats! They also have the ability to wake you out of a sound sleep just before they call to visit or you will feel a rush of energy before you encounter them. They artificially stimulate you to produce more energy so they can drain you better.
How do you protect yourself? Well, garlic and crosses don't work. You need to visualize your aura as a solid egg around you that has no cracks or imperfections. I use a nice egg shell for colour. You can use anything but reds. Carry some agates or put them out in the house or your office. They will protect you. The more swirls and patterns in the agates, the more protective they are and the more distracting to the Vampires. Never underestimate the power of a pentagram with the horns turned to the Vampire. You can always suck them dry if you are in a really evil mood.
Try to feed them something with salt, basil , onions, garlic or black pepper in it to dampen their field. Sniff some galangal root to increase your psychic energy to fend them off. Wear geranium, lime or vetivert oil for protection. After they leave, smudge the place with pine or white sage. Clean where they sat with a pine cleaner.
Ofcourse the best course is to find a way to avoid them.