Who knows how to drink Russian vodka?!

Bottoms up.

First Rule
: drink what is served to you in one gulp. Nobody measures the quantity of alcohol poured, this is left to the discretion of the pourer.

Second Rule
: never sip or mix vodka. Mixing is perceived as a western way of doing things since orange juice is often more expensive than the vodka itself.

Third Rule
: always buy back a round of drinks to everybody that treats you. Although this step might seem like a difficult one when your senses are altered after a few too many intakes of Russia's little water , this is expected. Failing to follow this courtesy might land you a first class spot on the vodka black list.