Green's smart contact address:
(you will need to create (if not already created) or have a MetaMask account for this action)
On your MetaMask account, GREEN can be added to your MetaMask wallet as a Custom Token:
Go to "import Tokens"
Input Green’s smart contract address:
The Token symbol and the token decimal should automatically fill then click "Add custom token"
Click "Import Tokens"
In your MetaMask wallet, the GREEN token option should have been added.
Green digital reward is capitalized as GREEN