Not a huge deal, but I'm experimenting with headturner for the first time, and it kind of threw me off that right and left are from the camera's perspective, as opposed to other tags (eyebrows, eyes, etc.) that use the puppet's point of view for right and left.
I suppose headturner could be referring to the performer's perspective - because the webcam captures a mirror image, when I turn to my right the puppet turns to his left - but that may be even more confusing.
As I said, not a huge deal, but it did add a little confusion to the process.
This still confuses me too - but it's the correct terminology. A left profile means it's looking right and seeing the left cheek.