You can do a hanging indent in Google Docs by following these steps:
1. Select the text that you want to apply the hanging indent to.
2. Click on the "Format" menu at the top of the screen.
3. Choose "Align & indent" from the dropdown menu.
4. Select "Indentation options" from the options that appear.
5. In the "Special indent" section, select "Hanging" from the dropdown menu.
6. Use the "By" field to set the amount of space you want for the hanging indent.
7. Click "Apply" to apply the hanging indent to the selected text.
Alternatively, you can also use the ruler to create a hanging indent in Google Docs. Just follow these steps:
1. Select the text that you want to apply the hanging indent to.
2. Click and hold the top triangle on the ruler.
3. Drag the triangle to the right to create the desired hanging indent.
4. Release the mouse button to set the hanging indent.
Your selected text will now have a hanging indent in Google Docs.