I have met a real vampire before!
Did they feed on the life essence of the living?
They had a friend who would let them feed on them.
Vampires have been recorded in most cultures and have been known by many names, so there is a good chance that was a real vampire 
Probably just someone trying to be a vampire.
In modern times the vampire is generally held as a fictitious entity, though believe of vampiric creatures still exists 
I don't believe they exist. I think it's all a myth.
Well be careful if you seem someone wearing shrouds or are bloated with ruddy or dark countenance that very well could be a vampire