Click on "Stake" on the top of the navigation bar and select "Genesis Mining (V1)" on the page.
1. Choose the liquidity mining pool you would like to stake in (e.g. Old 3pool LP), click on "+" to confirm the deposit amount, and click on "Deposit".
2. You need to click on "Accept" in the Signature Request pop-up window to complete the action.
3. After the deposit, you can view your staked amount in the "Staked" section.