Open the Staking Page,
Connect your Metamask wallet or another wallet via Wallet Connect by pressing the 'Connect Wallet' button in the upright corner,
You might be asked to change the network to Step Network — confirm this change.
Enter the amount you would like to stake in the light-yellow field,
Press the 'Stake' button,
Confirm the transaction.
How do I see how much I have in the pool?
In the navigation in the up-left corner find a tab called 'Zero-Inflation Yield',
Switch to the 'Zero-Inflation Yield' tab,
Find the 'Stake History' area where all information about your staked funds is visible.
How to know if I won the lottery?
Valuable question here. There you go:
Find the 'History' button in the upright corner, right next to your address,
Click on the 'History' tab.
Keep in mind that the snapshot for the lottery is taken every 14 days. And to participate in the lottery the funds has to be in the pool at the moment the snapshot is taken.