the synapses in your brain send a message down the nerves in your arm and that makes your hand move.
TJ, seriously dude, this is a models and media forum, not modelling beginers question time. This might sound harsh, but c'mon, in your other post you asked what polygons were. Any child could tell you they are a multi sided shape. It simple geometry.
And since you dont yet know what a polygon is, I don't think you're anywhere near learning how to animate.
that's like learning how to program, before you know what a computer is.
"It's often better to keep your mouth shut and let people think you're an idiot, than to open it and confirm their suspisions" - Noel Coward