I'm at a cafe and a 5yo girl locked herself in the bathoom. The bathroom uses a latch, and she doesn't seem able to figure out how to unlock the latch.

I slid my phone under the bottom of the door, so the mom could Facetime with her. We also used another phone to take a video of another latch and show her how that worked, but it doesn't seem to be helping.

Any ideas on how to coach her through undoing the latch?