Not transgender

It is very unlikely that this show person is going to do girlie things.

He is a showman, and entertainer. There is nothing girly in the clothes, the hair is unisex.

This story was mostly about librarians picking a lousy entertainer for the kids.  I doubt any of the kids thought this was girlie show. The librarians are likely confused about what constitutes girlie stuff and manly stuff.

Here is a girlie thing: The girl puts on her jeans and goes to the library to read a history book for class.  That is a girlie thing.

I look at my neighborhood. and see that about 90% of the girls wear unisex jeans and just tie their hair back, pretty much like the boys. We have a few drag queens, easily noticed as  they are all dressed up with makeup, and none of the real girls generally do that.