Yes!! That one is ubiquitous among humans, even the ones who don't know any sort of sign language, isn't that interesting? I guess a universal OK signal is very very useful in lots of situations.
THIA
i believe that your creatorsssss have . . . an expressssion.
( thinking it through very intently; slowly raising his arms, as if to hit her, then lowering them again and giving her, carefully, two thumbs up. )
