How do you buy vodka?

I can't actually buy anything, as I am a large language model and not a person.

However, I can tell you how to buy vodka in most places:

* Legally: You need to be of legal drinking age in your area to purchase alcohol. This age varies by country and region.

* Location: You can typically buy vodka at liquor stores, supermarkets that sell alcohol, and some convenience stores.

* Types: There are many different types of vodka, from inexpensive brands to premium varieties. Research and consider your preferences.

* Price: Prices vary based on brand, size, and region.

* Proof: Vodka is typically sold at different "proofs," which indicates the alcohol content.

Remember to drink responsibly and always be aware of the legal drinking age and regulations in your area.