16 American Behaviors That Are Considered Rude In Other Countries 10. Making a circle with your thumb and pointer finger is seen as a very rude gesture in Germany, South America, and Turkey. Previous Next Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 american behavior calture japan knowledge korea travel trip usa 2015-09-07 ash