Once you’ve set up and verified your account, explored and populated your wallet with tokens, you can connect your Metamask to
Opensea and buy NFTs !
Purchasing NFTs involves gas fees. Indeed, the Ethereum network requires gas to execute transactions. When you send tokens, interact with a contract, send ETH, or do anything else on the blockchain, you must pay for that computation. Refer to
here for details.
To avoid any issue during the purchasing process, please add 0.05-0.06 ETH to cover gas fees.