Step 1: Take the Wii-Mote and put it sideways in your hand, face to the left. (To the right if you're left handed.)

Step 2: Move the cursor between the last two dots on the lane.

Step 3: Point your Wii-Mote directly to the ground. Once you have it there, put your wrist at about a 30 degree angle.

Step 4: Hold B and flick your wrist and watch the magic.