I thought this poster from Wipe Out Transphobia was really helpful not only for being an effective trans ally, but also for thinking about identity more universally. The point that “gender identity is not sexual identity,” applies to anyone. In the end, we are all “trans” to whatever degree our sense(s) of self or performance(s) of  identity differ from culturally-constructed/popularly-accepted “norms.”

How to be a Trans Ally