Say how it went, in your own words. No account, no stars out of five.
Start with @ for an X handle. Either way it is shown as typed, not checked, and as plain text on the page, never a link.
Optional. Your X handle is filled in by X instead of typed, and the review shows it was confirmed. Skip this and your review still counts.
snow gives one code per purchase. Enter it and your review carries the verified mark. Skip it and your review still counts.
snow reads every review before it goes on the page. They can approve it or leave it off, but they cannot edit what you wrote.