Don't have MEW wallet app? Find more information and download the app here: https://www.mewwallet.com/
Step 1: Access your wallet and click the 'Earn' tab found toward the bottom of the MEW wallet home screen. Once that opens, click on 'Ethereum 2.0 Liquid Staking with Lido'.
Step 2: Review the information about staking your ETH with Lido and click on 'Start Staking'
Step 3: Enter the amount of ETH that you want to stake then click on 'Review My Stake'
Step 4: Make sure to read and review the risks involved and if you are ready to proceed, click on 'Agree'.
Step 5. Double-check the information and confirm the transaction. Make sure to read through and check the boxes.
You'll be receiving stETH which represents your stake in Ethereum 2.0
Please keep in mind that you can swap stETH for ETH at market rates at any time, but you will only be able to redeem your ETH for stETH, at a 1:1 basis, once transfers are enabled on Eth2.
Step 6: Click on 'Check and Confirm' and choose your transaction speed.
Step 7: Confirm the transaction using your PIN. Allow the time for the transaction to process and please make sure to stay on this page.
To speed up your transaction, click on the 'speed up' button to increase your gas price.
Step 9: Congrats! You've successfully staked your ETH with Lido! Feel free to double-check the transaction on Etherscan to confirm the transaction. You can come back to the Earn tab any time to check the status of your stake and the rewards earned.