Well proof of stake is holding coins in your wallet on your pc.  They earn 1% interest with Pink, some coins like Seed earn up to 16% interest.   You don't have to leave your computer running just turn it on every now and then and let your wallet catch up to the block chain and it will earn staking income.  If you were to leave it running 24/7 your earned stakes will add to the total and be that much more staking so this is a way to achieve maximum earnings. 

What I would do is download the latest wallet and get it synced fully.  Send a small amt of coins to ensure no issues once received send your full amt purchased.  Once you have deposited everything you want to stake you need to encrypt your wallet via the drop down menu in the wallet.   Make sure you don't lose this long password or you lose your coins forever.   Once encrypted ypu will need to restart your wallet and again in the drop down menu unlock the wallet for mining only.  Note the checkmark for unlocking for this purpose only.  Really all that is needed is patience now.  It will take a few days to build up your network weight and you will get confused by time till payout which is not to accurate.   No coin is from what I see and I have 6 wallets staking.   Lastly make sure you back up your wallet, I back mine up to my email and the cloud.   You never know if your puter kicks it and you need the keys to your wallet.  What else...

Basicly this is an energy efficient way of mining which keeps the farms away.  The more coins you have the more you earn in interest.  Feel free to use the Pink block explorer and look at how much certain wallets earn with what amt of coins.  It's all there to see.

I think I got most of it if there is something else I'm sure someone will post it soon.  All of us in the Pink community use Slack now so if your ready to join buy some Pink and ask for an invite.  There are also special privileges to those who hold a Million consistently.   

Hope this helps!