1. Alexa, cancel.
  2. Alexa, disable [skill].
  3. Alexa, enable [skill].
  4. Alexa, help.
  5. Alexa, louder.
  6. Alexa, mute.
  7. Alexa, open [skill].
  8. Alexa, repeat.
  9. Alexa, set volume to [10].
  10. Alexa, set volume to [5].
  11. Alexa, softer.
  12. Alexa, stop.
  13. Alexa, turn down the volume.
  14. Alexa, turn it down.
  15. Alexa, turn up the volume.
  16. Alexa, unmute.
  17. Alexa, volume [1-10].