I very rarely use my facebook, but I went back and set my gender to genderqueer, and then made it so only people I know well could see it.
I did, too, less than a month ago. Then I went on a trip and changed my profile picture, so it was a shock when I saw "______ has changed his profile picture." It caught me off guard for a second, haha.
Congrats! Don't be scared. I switched my gender to transmasculine and changed my pronouns to they/their. I figure it's a start before I make the leap to full male. What I really wish I could change is my name I just want my first initial and last name but it won't let me use that.
Congrats! I remember that I did this about a year ago before I left to go back to college. It's scary, but for me nobody really said anything. I had some questions, but that was all I hope that it goes well for you too!
The only thing people pointed out about mine was that when I changed it, the pronouns defaulted to "her/she/hers" and I never really changed them because I really don't care what pronouns people use, so long as I understand they're talking about me.
congrats!! that can be a scary step! yeah I had my actual gender up on facebook but I don't have FB anymore