How do I know when there are governance proposals in the voting period?
You can periodically check the Active Proposals or Governance sections on Keplr Dashboard.
How do I vote on a Governance proposal?
Next to an active proposal within Keplr Dashboard, click on "Vote," select your ballot and then click on "Confirm." Review the transaction summary in Keplr Wallet and approve the transaction.
Can my validator's vote override mine?
It is possible, but it depends on voting power (percentage calculated on the basis of the tokens you've staked). You can also overwrite the vote of your validator in proportion to your voting power.
I changed my mind, can I change my vote?
You can change your vote at any time as long as the proposal is in voting period.