Final answer:
To notarize a signature, one must provide valid identification, sign the document, occasionally provide witnesses if required for specific documents, and the notary will use their seal to complete the process.
Step-by-step explanation:
Before you can notarize someone's signature, there are several basic requirements that must be met. The person whose signature is to be notarized must present valid identification to the notary to verify their identity. The document that needs to be notarized must be signed in the presence of the notary. Witnesses are often not necessary for the notarization process, but some specific documents may require them. Lastly, the notary will use their notary seal to affix to the document, which finalizes the notarization. It's important to note that the exact requirements can vary depending on the legal jurisdiction and the type of document being notarized.