A lot more frequently than I used to now that I'm on antidepressants and can actually stand to look at my own face

Literally never. Unless you count the times I accidentally tap the flipping icon and then have to scramble to get the front-facing camera again. And yes, I realise I’m the odd one here.

I can't remember the last time I used it.

To photo behind something.

To inspect something on my face.