Overview: Step 1
Assuming you already have a crypto wallet like Coinbase set up, connecting it to OpenSea and building an account is a breeze
Select Coinbase Wallet
Click on Install
Click on Add to Chrome
If you already have your wallet than click on existing wallet, here we have coinbase wallet
Than Enter your wallet’s 12 Word recovery phrase
Now again go to opensea login (https://opensea.io/login) click on Coinbase wallet
After connecting a wallet, OpenSea will bring you to your account’s profile page where you can view any NFTs you’ve collected, created, or favorited on the site for potential purchase.
Your default account will be “Unnamed” until you navigate to the settings to the right of your profile picture to customize your account. OpenSea will hit you with an extra security prompt at this point, asking you to "Sign" a quick agreement before you can continue. Once you’re through this prompt, you can customize your profile. Pick a username, write a quick bio and add a secure email address to your account.
Click on the below link and you will be redirected to our profile https://opensea.io/collection/the-tattoo-artist
Hitting “Checkout” will open your wallet where you’ll get a final cost including applicable gas fees depending on your blockchain choice, Click the “Confirm” button and you’re the proud new owner of an NFT.
To see the NFT in your wallet, return to your profile, and select “In Wallet” on the left side of the page. There might be a slight delay until it shows up due to processing time.