LG V30 Guide De L'utilisateur page 112

Selfie shot
You can use the front camera to view your face on the screen and take
selfies.
Gesture shot
You can take selfies by using gestures.
Show your palm to the front camera and then clench your fist.
You can also clench your fist and then open it towards the front camera.
In three seconds, a photo is taken.
To use this feature, switch to the front camera mode, then tap
Selfie shot Gesture shot.
Make sure that your palm and fist are within the reference line so that
the camera can detect them.
This feature may not be available while using some of the camera
features.
Useful Apps 111