be nice, ask about her interests, and
actively and genuinely listen. also, if you're talking in person, face-to-face, don't stand too close, and keep your hands to yourself unless you have express permission. you may feel kinda silly asking for permission to touch her (even if it's just a hug or something), but it shows that you have respect for her. you never know what someone's been through that may make them opposed to physical touch; and sometimes, people just don't like physical touch. but even if they do, it's always best to ask! hope this helps!