This week, U.K.'s Prince William and Duchess Kate Middleton saw the Cleveland Cavaliers win against the Brooklyn Nets in Brooklyn. LeBron gave Kate customized uniforms to take home, but for the British...LeBron committed a faux paux! LeBron put his arm on Kate!

This isn't the first time when an American touched royalty...Michelle Obama shook hands with Elizabeth II. The Americans have different etiquette, people just are misunderstood about how different countries etiquette is...agree or no?