From parallel mini-waves (which may be part of a wave or the
center of a two faced line), the in-facing dancers will step forward,
turn half using the hand which was joined in the mini-wave and
return to the spot vacated by the out-facing dancer.

 At the same the out-facing dancer will step forward,
turn towards the hand used in the mini-wave and
take the spot vacated by the in-facing dancer.