There is no need to "trick" a touchpad. It is capable of only one thing: sensing pressure and tracking the movement of pressure across it's surface. It doesn't care if you use your finger, a pencil, or your cat.
--Different User--
The guy above is an idiot with a prehistoric laptop. Whatever trackpads use to recognize biological material is unknown. Conductive materials alone fail to work. I have discovered that a penny will fool a trackpad but only if your finger is directly touching the top of the penny (using a pencil to guide it won't work, I don't have a clue as to why)
The rectangular pad is a called a touch pad.
The "touch pad" on an iPad is basically the mouse.
The touch pad, or trac pad
A track pad is a touch sensitive pad used to track the motion of your fingers on a laptop or tablet.
the blackberry bold has a small touch pad, in place of the ball
A touch pad can be a standalone device, or it can be part of the monitor or keyboard. It is an input device.
touch pad
there is no purpose
looking for hp touch pad wi fi 16 mb
I am guessing that the person who did the "Magic trick" had a touch screen and had programmed the touch screen to do what you saw in the video.
A laptop touch-pad is equipped with a heat pad, so your finger radiates heat which makes the computer respond. A pencil does not emit heat so the touch-pad has no input to go off of. This is the same with touchscreen devices, lowing the possibility of a pencil accidentally hitting buttons.etc
An I-Pad?