Hints malfunctioning on Mint Cinnamon

When just entering `hints` in the terminal after installing:

(hints:10812): dbind-WARNING **: 17:25:16.703: AT-SPI: Unable to open bus connection: Failed to connect to socket /run/user/1000/at-spi2-1RE4O3/socket: No such file or directory
Traceback (most recent call last):
File "/home/redacted/.local/bin/hints", line 10, in
sys.exit(main())
^^^^^^
File "/home/redacted/.local/share/uv/tools/hints/lib/python3.12/site-packages/hints/hints.py", line 375, in main
hint_mode(config, window_system)
File "/home/redacted/.local/share/uv/tools/hints/lib/python3.12/site-packages/hints/hints.py", line 229, in hint_mode
mouse_action["x"] + mouse_x_offset,
~~~~~~~~~~~~^^^^^
KeyError: 'x'

What are you supposed to press to activate the hints, anyway? The GitHub guide doesn't say how to actually use it. I'd love to get this working if possible.