The document, titled "Hate Agent Policy Review" outlines a series of "signals" that Facebook uses to determine if someone ought to be categorized as a "hate agent" and banned from the platform.
Those signals include a wide range of on- and off-platform behavior. If you praise the wrong individual, interview them, or appear at events alongside them, Facebook may categorize you as a "hate agent."
Facebook may also categorize you as a hate agent if you self-identify with or advocate for a "Designated Hateful Ideology," if you associate with a "Designated Hate Entity" (one of the examples cited by Facebook as a "hate entity" includes Islam critic Tommy Robinson), or if you have "tattoos of hate symbols or hate slogans." (The document cites no examples of these, but the media and "anti-racism" advocacy groups increasingly label innocuous items as "hate symbols," including a cartoon frog and the "OK" hand sign.)