One word is all it takes to set the shutter. The LG smartphone's camera can also take photos and record videos by saying a word like "LG" to the person. For the self-timer, which is disabled by default, the following commands are available

Android 9 | LG UX 9.0
Voice control -  Open the  Camera -App
Voice control -  Open the  Settings
Voice control -  Enable or Disable  Cheese shutter
  1. Open the Camera-App
  2. Open the Settings
  3. Enable or Disable Cheese shutter

LG Instructions