For non-cis AFAB people:

I came up with this, and it's how I plan to come out as non-binary to my friends...

Say this:

I'm not like other girls.

*does the Debby Ryan*

I'm not even a girl.

*looks up*

I'M (in this case) NON-BINARY!!!

*cheer*

[insert sound effect because I can't think of one...]