I suppose it'd be people showing they're allies, good urban design like bathrooms instead of male and female bathrooms

policies like "if you're an ass towards queer people you get kicked out"

people wearing gnc clothing and nobody batting an eye

no hate being present is also a big one, so i try to do my part by removing terf and anti-women's rights stickers, or putting a nice fat pro-queer/pro-women's sticker on them. or something unrelated altogether. I disacknowledge hatred and will deny them a platform.

honestly, it's really the same things that make anyone irrespective of gender feel safe to be themselves: a supportive environment, that's not toxic, and inclusive