Querying the IOV Name Service, like resolving starnames, does not require any set up from the user. However sending transactions to the IOV Name Service requires an address and IOV Tokens.
Signing transaction is done automatically in the CLI when your private key is registered locally. It can also be done off line, which is mandatory for multisig (Signing with a Multisig).
Querying your account (or anyone's account)
Ownership records are public on the IOV Name Service. It means that anyone can query the balance of IOV tokens are a given address with the command query account
The denom is the unit of the amount of the balance. In Cosmos SDK, the unit is in micro (u), hence it is uvoi. A micro IOV is 0.000001 IOV, or 1e-6 IOV.
Receiving and sending IOV Tokens
Once your address is set up, you can receive IOV tokens (and starnames) to your address. You can also send IOV tokens and starnames you own to other star addresses. The command for IOV Tokens is simply send