• Find out if your workplace is unionized. If not, look into organizing your workplace (be very careful, however, so as not to jeopardize your own employment)
• Volunteer at a local Food Not Bombs chapter
• If you have a lawn, think about growing wildflowers or vegetables instead of grass
• Find out whose land you are on
• Become an escort at an abortion clinic
• Donate to local farmers of color through Soul Fire Farm’s Reparations Map
  
• Write a letter to a prisoner
• Learn how to become a street medic
• Find and join a local community organization, activism group, or antifa chapter
• Learn about political campaigns going around you, and volunteer, phonebank, or donate to candidates that represent your values
• Donate to a local bail fund
• Clean up litter around your area
• Make a bat box or bird house, or set up a bird feeder
• Get to know your neighbors–strong and supportive communities are a vital element of social action
• Share and support art, especially those created by members of marginalized communities
• Support the Wet’suwet’en Nation in their struggle against climate colonialism
• Write a letter to the editor in your local paper about an issue you care about
• Make seed bombs with local wildflowers and spread them around empty areas of your neighborhood

Feel free to add your own ideas/suggestions! :)