It really isn't that hard, but I won't lie - I refuse to use made up terms to refer to someone as (referring Xie/Xer/Xim). If you are a biological male and feel you are female? Then I will refer to use with female pronouns. If you are biological female and feel you are male? Then I will use male pronouns. If you don't know? Then I will refer to you with pronouns related to your biological sex (or use Dude, which I tend to use interchangeable regardless of the sex).