Register an account with your details.
Get your account verified by following the neccessary procedures.
Download and install MetaMask,Coinbase,Binance. This will allow you authorize and access to your Ethereum account.
If you made a new account, buy some Ethereum. To Fund Your Account
Once you have Fund your account, this website will recognize it and add buttons that allow you to bid on, buy and sell Nfts directly in the interface.