Select Metamask icon and unlock your wallet. Select the “Assets” tab, scroll all the way to the bottom and select “Add Token”.
Select the “Custom Token” tab and paste the contract address into the “Token Contract Address” field.
If the rest of the data is not auto-populated in the other fields, fill it in as well. Select “Next”, confirm the token is correct, then select “Add Token”.
The token should now appear in Metamask.