What to do to get your % on your stake ? Is it ok to locked my wallet and wait ? Or has it to be unlocked to receive POS ?
If it has to be unlocked, after how many days it has to be unlocked before i see some coins comming in ?
I saw 3 days , but do you actually see it after 3 days ? And how many % will come in ?
You have to unlock your wallet once every 3 days for a while, to let them stake. I got some minted Cinni already

Every 100 day you should send your Cinni to an other wallet, to reset the coinage.
You get 3.5% a year, so probably like 0.02876% every 3 days.