Handshakes are gross! Let’s embrace the fist bump!

Businessman Donald Trump has said he doesn’t like to shake hands, either. He calls himself a “clean hands freak.” (Richard Drew / Associated Press)

Jan. 9, 2014 6 AM PT

You know who likes fist bumping? The Obamas. This 2008 photo shows the then Democratic presidential candidate getting a knuckle bump from his wife before a speech. (Craig Lassig / EPA)

Once in office, President Obama continued with fist bumps when greeting his audience. (Charles Dharapak / Associated Press)

The president isn’t the only politician who does it. Here, Sen. Cory Booker (D-N.J.), left, offers up a fist bump at the Capitol in Washington. (Saul Loeb / AFP/Getty Images)