I grew up in South Carolina and we definitely did this (without the "please" and "thank you" part).
If I recall, there was an additional requirement where the ok hand had to be held below your waist, though.
If I recall, there was an additional requirement where the ok hand had to be held below your waist, though.
I have relatives my age in new zealand, and it was also common there.
Memes have an amazing power to spread, huh?