+1 to all pre posters.
Like pet', I used to box.
If you are looking for the movement that most closely emulates the "up on toes, "dancing", bouncy steps", that many boxers employ, two things above all others stand out
- Skipping rope for rounds as though you were fighting. The skipping step, bouncing on right foot, left back, left forward, bounce on left foot, right back right forward, to switching steps at an increasingly quicker pace, to high knee quick steps, then back to something slower, for the entire round. My old trainer made Juniors skip for five rounds and pros skip for ten rounds first thing upon entering the gym.
-Shadow boxing, up on toes, dancing, bouncy steps. Think of this as a martial arts kata, single jab, double jab, single jab, combo, etc. Again for rounds.
- Also, try to incorporate the dance for all your bag drills as well. At the beginning, it is almost as hard as just keeping your hands up for three minutes at a time. :]
Kettlebells have a HUGE carry over to most any physical endeavor, which I have learned recently. But nothing will teach you to float like floating. Whatever you do, remember to start small and slow, increase as allowed.
I hope this helps. Good luck.