Join Greenwood Neighbors Protecting Neighbors (FB link here) to protect one another and provide aid to vulnerable community members.
Learn how to be an observer: Here's a YouTube video by No Kings organizers about how to document and record ICE encounters. Fast-forward through the first 8 minutes to get to the heart of the workshop.
The League of Women Voters has published a comprehensive guide to immigrant and protester rights, including downloadable cards and trainings. Check it out.
And the City of Seattle's Stand Together: Let's Make Seattle a Welcoming City is worth a read to understand Seattle's policy on immigration enforcement.