Here in the good Ol' U.S.A. when someone cuts us off in traffic or when they aren't behaving in a pleasant way we all have our go to hand sign. I don't remember where I first learned how to make that sign or even how old I was when I learned but I do know I have had many occasions to use it.
This gesture, it looks a lot like a reverse hook-em horns that University of Texas fans often display. This gesture means anything but go team. In Brazil and the Baltics this fancy finger display means "your wife is unfaithful".
This gesture is sure to create quite a stir if you were to display it in the country of Jordan. Quite simply this finger to the nose doesn't mean something smells, it means I would like to have a physical relationship with you. You can Americanize the term if you like but I think you get the idea.
France is a popular place for Americans to travel and sometimes the people in France can be quite talkative. Even if you don't understand the language you can still desire silence. That is why a symbol for "please hush" or as we say in this country SHUT UP is needed. If you're in France just make your hand into the shape of a mouth and close the lips!
Here is a hand gesture from Brazil that could cause massive carpal tunnel syndrome in our nation's capital! This expression in which the hand is held flat underneath the chin means bull poop. That's right the organic droppings of the male bovine species and what comes out of politicians mouths is summed up in this eloquent expression.