In the real world? You don't; vampires don't exist.
In the fictional world? It depends on the set of rules that governs the vampires. Sometimes being injected with vampire venom, either through biting or injection by needle, can start the transformation. (See Twilight).
Others can transform by having vampire blood in their system when they die. (See The Vampire Diaries).
to dring blood from a vampire
no one must know
You become a vampire if you get bitten by another vampire
You have to be bitten by a vampire to become a vampire
So wrong the secret to the vampires is to always not be known to outsiders and is never to become known to anyone the Dracula myth is not real we follow our own path to becoming powerful. Another Answer: no, if you are bitten by a vampire you do not become one, it is actually the exchanging of blood, the vampire bites you then you drink some of the vampires blood, thts how you become a vampire
No, you do not. You can only become a vampire by being bitten by one, either contracting Porphyric Haemophilia from vampire enemies, or by allowing Vicente Valtieri to turn you into one.
i think that vampires are real and whith out bieng bitten mabye they are evil
You cannot make a spell or potion to make yourself vampire - you can only become a vampire by being bitten by one.
you cant turn into a vampire. they are fake. but you can pretend to be one and the way that i know to turn into one with out being bitten is ingest vampires' blood then it needs to break ur neck then u will come back to life then u must feast on human blood to complete the transition
by being bitten by a vampire
To become a vampire, have one bite you. Then drink its blood. The only researched way to become a vampire is to become bitten by one. However with vampires being fictional creatures (so far), this is unlikely to happen even if you were bitten by someone (This would most likely result in you requiring a rabies jab and no vampiric powers).
maybe by being bitten by wolf you can become a werewolf not sure