What may be a bigger factor is that the body language of someone feeling uncomfortable is noticed and reciprocated empathetically by someone who empathises with you, automatically.

Genuine question - I don’t actually know how to signal allyship without looking like I’m pandering or being weird. I dress pretty professional/plainly on transit and figure a trans pin would be of place because I don’t have any other backpack decorations. Are there subtle things you guys and girls have seen that sends a positive message in a subtle way?

The solution is to get more backpack decorations