Ok I’m a cis woman so I want to help you learn how to behave in women’s spaces to fit in, if I can. Don’t talk to us in public bathrooms: it’s not socially acceptable and will upset us. Cis women don’t do this unless there is a reason to (we need a pad, we see someone is upset etc). A quick smile and look away. Being overly friendly comes across as a fetish or invasive. Hope this helps! I know some women react badly and that can’t be fun.