Best way to learn is testing things out. Experiment with events you don't know about. Unless it's VCE, most of the events are pretty straight-forward. If you really can't figure an event out, then you should find a guide.
>Start off simple with "onActivate" or "onPlayerTouch"
>Learn the outputs through "onActivate" or "onPlayerTouch"
>Expand to newer input events and so on