Receiving a stream of tokens via Superfluid is very similar to receiving an Ethereum transaction. The main difference is the token types - Superfluid uses Super Tokens, so you'll need to add them to your wallet before they appear there. To easily see your Super Token balances and unwrap, view them using the Superfluid Dashboard.
To add Super Tokens to your wallet, follow your wallet's instructions to add custom tokens. The Super Token addresses you'll need to do so can be found here.
If you've received a stream and want to unwrap underlying tokens from your Super Token balance, you can use the instructions here.