Have you ever watched somebody in class, or at the office skillfully twirl a pencil around his or her thumb and wondered how that person did it? Have you tried to do it on your own and found that it's not as easy as it looks? By following these steps and practicing - a lot - you can amaze curious onlookers with your brilliant pencil spinning, too!
Step 1

Hold the pencil between your index, middle finger, and thumb. Your index and middle finger should be spaced about the width of your thumb apart (Your thumb should be able to fit between your index and middle fingers). Your fingers should point upwards about 20-45 degrees. Your middle finger should be against the center of gravity of the pencil (towards the middle, slightly closer to the eraser).
Step 2

Simultaneously fold your middle finger in (at the joint closest to your hand) and extend your index finger. Your middle finger should end up resting with the inside of its last joint on the thumb.
Step 3

Catch the pencil after it wraps around your thumb and hits your middle finger, by moving your index finger back to its original position.
Step 4
Practice this by holding the pencil in your non-dominant hand and guiding it around, so that you get a feel for how it should move. Also, the angle to hold your hand at varies from person to person. Experiment to find your preferred angle.If you still don't understand how it works, watch this video, and you will know how to do it better: How to Spin a Pen Around Your Thumb