Even the how to pass as male is full of female stereotypes. This section continues on to give advice on manspreading! Both are incredibly offensive.
Take up space rather than trying to be unobtrusive. Women tend to make themselves look smaller, such as by crossing their legs, slouching, or keeping their arms tucked in. Do the opposite of these things to appear more masculine. Sit with your legs spread apart, sit or stand up straight and tall, and take up space with your arms.
I see we've already been berated for not "being kind". If you continuously insult and berate someone they stop listening to you. It's 4 years too late for "be kind" to have any effect on me, my last fuck to give grabbed it's coat and departed sometime ago. I will not be told by anyone how I'm allowed to discuss women being reduced to a performance.