To "come out", I intend to first discover who I am.
If I was non-binary, I would first talk about scripting video games.
Then I'd switch to 8-bit and speak of binary code.
And I'd subtly say "I am not part of the crowd." referring to binary code.
"I am non-binary." I'd then say, officially having said it.
As transgender, I'd hint about science, because scientist is my career plan, and how females are born with two X chromosomes, and then switch to surgery, slowly inching towards trans surgery, and then officially declare that I am transgender.
There's also the chance I just have low self-esteem.
I really hope that can be fixed without becoming egotistical if I'm a cishet with low self-esteem.
How does this apply to you, you ask? Well, it doesn't, since you are pangender and pansexual.
But I hope I could help.