honestly? become a safe space for her,express interest in her interests and just her in general. Flirt a little so she knows where you’re coming from and doesn’t just assume you’re being friendly (extra important, bc it sucks when a male friend says he liked you the whole time and you didn’t know). Obvy, kindness and respect are a must. AND if she’s around your friends and they say smth misogynistic or weird call them on their shit, trust me on this. It’s an ick if you don’t