It's About Respect:
Pronouns, neopronouns, and how to use them 

With the vast variety of gender identities, the common pronouns are bound to not fit many. The most common non-binary gender pronouns are the use of the singular They / Them / Their. A common argument against the use of the singular they is that it isn’t grammatically correct. This argument is facetious for multiple reasons. The singular they had been in use for hundreds of years before some grammaticians decided it could only be used as a plural. Language is also plastic and ever evolving - we define meaning through usage. Beyond the singular they, some use It / It / Its as personal pronouns - though some consider this to be dehumanizing, so only use these pronouns if a person has requested them.

Many also use neopronouns. Some of the most common neopronouns are Zie / Zim / Zir (pronounced like zee, zim, zeer), Xe / Xem / Xyr (pronounced like zee, zim, zeer), and Fae / Faer / Faers (pronounced like fay, fair, fairs). Countless variants exist, and spelling can differ person to person. Oftentimes individuals will use multiple sets of pronouns, in many cases to make the transition to using different pronouns easier for others. An example is a non-binary transfemme using both They / Them and She / Her pronouns. They / They may be the preferred of the two, but She / Her pronouns are also acceptable.

Regardless of what pronouns a person uses, they are not “preferred pronouns”, they are simply the correct pronouns. It isn’t a preference that specific pronouns are used, it is respectful to use the pronouns the person indicates are correct. Mistakes are bound to be made - in those cases it is best to simply correct yourself and move on. The intention is generally what matters, and being overly apologetic can take it from being respectful to making it about yourself. If you are unsure which pronouns to use and are unable to get clarification, the safest option is to use They / Them.