Add liquidity at https://uswap.me
See this article for information.
Go to https://uswap.me/eft/
Select the pool you have added liquidity. For example, it is EFT/TRX LP Pool. Press "Stake".
Enter the amount of liquidity pool tokens you want to stake. You can use the "MAX" button to stake all your LP tokens.
Then click "Stake" button.
The operation requires confirmation from your wallet. Please click “Accept” in the “Request Signature” pop-up window.
Then close the window.
Done. Now you can track your EFT tokens. All farmed EFT tokens that you can claim will be shown here on the "Personal Info" box.