In a Gender-Friendly Classroom...

... No one is told by others what they are (i.e.; nobody can tell you want your gender identity is) ...

... No one is called out for how they present (i.e.; nobody can criticize your gender expression) ...

... No one shows surprise when I arrive ...

... No one shows surprise when I use my name/pronouns ...

... No one shows surprise when I share my needs/interests ...

... I feel like I am exactly who you expected me to be.