President-elect Donald Trump and his former Vice President Mike Pence briefly interacted at former President Jimmy Carter's home.

Shaking hands might be one of the hardest customs ... It may have originated in ancient Greece as a symbol of peace between two people by showing that neither person was carrying a weapon.

Whenever I speak in public and have to hold my speech in front of me, the piece of paper in my hand shakes so vigorously that even the people sitting ... more it seems to shake.