Once running an up-to-date fully synced client with a positive balance, all that is required is for you to unlock your wallet for 'staking only'.
Once your wallet is unlocked, it will take up to 16 hours for your coins to fully start staking.
In order for your Gridcoin client to begin staking, it must locate coins to stake - newly acquired Gridcoin must mature (be present in your wallet) for 16 hours before it transfers from your balance into the 'staking balance' to which it begins competing to be used to create the next block.
There are 960 blocks per day that you can attempt to stake. If you've got 1% of the total Gridcoin supply, you'll approximately stake 9.6 blocks per day.
The formula required to work out the quantity of coins to stake in a period of time is: