A: Shake hands

 Men shake on average 6.2 hands a week, compared with only 2.6 for women.

• Archaeological ruins show that handshaking was practiced in ancient Greece as far back as the 5th century B.C. as a gesture of peace by demonstrating the hand held no weapon.
• Researchers credit Sir Walter Raleigh with introducing the act to the Western World during the late 16th century.
• John F. Kennedy thought it so important he commissioned an entire study to determine the most effective handshake he should use when meeting other world leaders.
• The world’s longest handshake took place on November 21, 2009 when Americans Matthew Rosen and Joe Ackerman broke the Guinness World Record after shaking hands for 15 hours, 30 minutes and 45 seconds.