Tickling

Not to be confused with Tickle Torture

A baby being tickled

Tickling is to lightly scratch, touch, or rub a person or animal to make them laugh. For most people, it causes pleasure and happiness whereas others hate it. Tickle spots are feet, armpits, and sides of stomach.

Other websites

• Telegraph (UK) Article on "robot tickling experiment"
• Boston Globe Online - Why are some people not ticklish?
• Article 'Is it possible for someone to be tickled to death?' from The Straight Dope