I cannot figure out how to mint with the wallet.
I have unlocked the wallet using the console. In the lower right hand corner the lock appears unlocked and the overlib reads 'wallet is encrypted and unlocked'.
Is there something else I need to do?
Just wait for your coins to start staking. You'll begin to see minted amounts come in. It doesn't happen instantaneously. FYI make sure you delete your unlock command from console history as it contains your password in plaintext. I recently read another thread where someone lost 25k coins, apparently due to forgetting this step.
Ok. So just open the wallet, unlock, allow it to sync, then lock again?
Try leaving it open for a few hours. It's somewhat random when you get stake payout. No worries, your coins continue to accrue age and will pay out accordingly when you get a PoS minted block.