These two footwork techniques are used when an opponent  is coming to you.  A pivot is  stepping back  with your rear foot in  a wide sweep toward your outside while pivoting smoothly on the ball of your leading foot.

Practice  the following drills with your training partner:

• He rushes in – you pivot and cross  head
• He rushes in  – you pivot and throw  a lead hook to the head
• He rushed in – you pivot, throw a cross to the head, hook to the head and another cross to the head

As for waltzing an opponent, it’s a movement made famous by the heavyweight Georges Carpentier. The waltz is basically a pivot combined with a side step to the outside

Feint the lead hand and retreat drawing your opponent to come to you and as soon he step in , step to your outside on your lead foot and then pivot on the ball of that foot to follow with any appropriate combination.