Step 1: Hierarchy of prompts
At the bottom are the most hands-on prompts, like physically picking up your rabbit and spinning him in a circle.
Next comes putting a treat right in front of your bun's nose and using the sweet smell of a raisin to lure him into running around in a circle.
After that you can use a gesture without a treat, like making a circular motion with your hand.
And finally, with enough training and more than a handful of treats, your rabbit will be able to perform a trick with just the verbal prompt.
Your goal is to gradually reduce the amount of prompting needed for your bunny to complete a trick, from excessive pointing and grunting to a simple one-word command.