This is how I approach the work: Listen to Black folks who are still here. Don't try to guide those conversations; don't assume you have something to contribute to every conversation. Fight the urge to get defensive; ask clarifying questions where you feel you must but don't derail. Internalize that building/rebuilding trust is not instantaneous. Boost gofundme's and mutual aid for Black folks; contribute as much as you are able. Don't assume you're the expert here, but don't indulge in learned helplessness, either -- resist at all costs the urge to throw up your hands and say "I didn't personally cause this; I'm not responsible for it." When in doubt, ask whether a course of action you are contemplating is useful. These are starting points; I'm sure that people will be happy to chime in with more suggestions.