A Cool Guide to American Hand Gestures That Can Get You in Trouble Abroad

Tineye tracks this image back to 2017 and Pimsleur is old school in every way (including factoids) so the info behind it could easily be a last minute drunken assignment from 50 years ago.

We're a lot more globalized and everyone has been exposed to the America "character" through mass media since then. My advice to American tourists is to stop comparing everything to "back home" and to realise you are constantly breaking taboos but your hosts are too polite to tell you. And to remember this when the similarily offend you.