Pronouns, petnames and names

Pronouns:
They / them | bun / bunself
how do i use those pronouns?
https://pronouny.xyz/pronouns/5db5001ea97a65001517033b
https://pronouny.xyz/pronouns/5bc1af4ee3d78c0014b82be2

Names:
-Ri, Bunny, Mary

Petnames:
-yesyesyes: luv, bestie, darling, sweetheart, doll, sunshine.
-nonono: baby, pretty girl/boy, babe.

https://pbs.twimg.com/profile_images/1279973762180489218/4l_4bqKu_400x400.jpg