Sit in front of your monitor.
Look directly into the lens.
Click  "Take Photo" - below 
Don't forget to smile

Click  TAKE PHOTO when ready!

  Note: Because this is a beta-version (trial version) you won't  see any change of the "camera." But the picture will be shot the very second you activate the  "Take Photo"  button.  If the green light is blinking the camera is ready!

Don't move, when you click "Take Photo"