NOTE: This feature will be available starting on Q1/2022.
You can export an NFT from your Gameflip Gallery to your Metamask wallet by following these steps:
1) On your profile menu, click on Gallery:
2) On your Gallery page, click on the 3 dots above the NFT you would like to sell and click on Export:
Note: If you haven't done so already, you will need to connect your account with your Ethereum wallet. You can do so by following these steps.
3) Click on Sign and your NFT will be transferred to you Metamask wallet: