I have cousins here, who don't know about my situation..
They have a small boy (5.. and a half! ^^) years old, going to first grade.
In hebrew, almost every word is gender based.
So at one point he asked his mother out loud "I don't understand, why are you referring her as a he"

I wore extra large unisex cloths btw, avoided letting anyone see my breasts

Later he was a bit in my room and talked with me and see my plush animals, he's so cute! ^^
His brother didn't come and I asked him a little about him, he asked me how I know him - I said that we are cousins.. so he was like "I am in your family?!"..
A bit later he said "I like being part of your family"

I am starting to love kids more and more ^^