Editing Red hands (section)

==Variations==
(Tennis)

Another variation is where the slappee has their hands held palms together, held out at mid-torso height; the slapper then does the same with the tips of the fingers of both players hands around a centimetre apart, or with the tips of the middle fingers touching, and then (with just one of their hands) the slapper tries to slap the backs of the slappee's hands. You can slap the slappee's hands with just one of your hands as a strategical move.

A second variation is played as above but with one (or both) player(s) blindfolded.  If both players are blindfolded, you will need someone else to make sure they start in the right positions.

Yet another variation is played with both players forming fists, held in front of the opponent's fists. The offensive player knocks their knuckles against the top of the defender's fist, as a more painful variant of the game. This version is sometimes called bloody knuckles, though not to be confused with [[Bloody knuckles|other games of the same name]].