Bring the document itself, current photo identification, every required signer, and any required witnesses. If a lender, school, court, or agency gave you instructions, bring those too.
Do not sign in advance when the notarial act requires the signature to happen in the notary’s presence. Jurats are a common example. If you are unsure, leave the signature line blank until the notary explains the act that was requested.
Names on identification should reasonably match the document. If a name has changed, ask the receiving organization what they will accept before you book.