While I'm doing the Facetime video call, my camera turns on when I put the Facetime screen at the front. However, when I'm working on something else and Facetime is put behind, the camera automatically turns off. My friend does the same thing, but his Facetime always shows his face, so I assume there must be some setting to make it happen.
My computer is MacBook Pro (Retina, 13-inch, Early 2015)Version 10.14.5. How can I enable this?