If you own a cryptocurrency that uses a proof of stake blockchain, you are eligible to stake your tokens. Staking locks up your assets to participate and help maintain the security of that network’s blockchain. In exchange for locking up your assets and participating in the network validation, validators receive rewards in that cryptocurrency known as staking rewards.
You can also set up a cryptocurrency wallet that supports staking.
If you have your tokens in one of these wallets, you can delegate how much of your portfolio you want to put up for staking. You pick from different staking pools to find a validator. They combine your tokens with others to help your chances of generating blocks and receiving rewards.