Step 1:
Go to wallet.niftys.com and enter your email address affiliated with your Nifty’s account
Step 2:
Once you are logged in to wallet.niftys.com, in another tab open Opensea.com
Step 3: Select the profile button on the top right a modal with the title “Connect your Wallet” will appear, then select Wallet Connect.
Step 4: Scan the QR code will , or copy the link to your clipboard
Step 5: Go to the wallet.niftys.com window you are currently logged in to and click the connect button and paste the URI link on copied to your clipboard.
Step 6: Submit the URI link and approve OpenSea to connect to your Nifty’s wallet.
Step 7: Now approve the Privacy Policy and Terms Of Service on OpenSea
Step 8:
Check the notification center on wallet.niftys.com and approve the request from OpenSea
Step 9: Now you are logged into OpenSea with your Nifty's wallet.
Please refer to THIS video to connect your Nifty’s Wallet to OpenSea