Remember to get your .eth username lads, good chance it's a Farcaster airdrop requirement (importing mine this week)

I don’t understand what you sent to me 
How much can I get Eth domain

Here's a guide
https://support.ens.domains/en/articles/7882582-how-to-register

You can either buy one off Opensea or register one at the ENS website

You can either buy one off Opensea or register one at the ENS website https://app.ens.domains/