What do volleyball players do to hide block signals from the opposing team ?
The " keinuak " are : * Two Kings : biting the centre of the bottom lip * Three Kings : biting one side of the bottom lip * Two Aces : poking out the tongue * Three Aces : poking out the tongue to one side * Single Pair ( pares ) : tilting the head to one side * Three - of-a-kind ( Medias ) : pursing lips to one side of the mouth * Two - pairs ( Duples ) : raising the eyebrows * 31 ( La una , i.e.