I agree that the quickest way to complete a task is to have someone show me how to do it, but to have it really stick in my brain I need to figure out the limitations on my own.
The problem with just doing what people "show me" means that if the computer does not react in the way I expected it too I am stuck once again. The best way to learn IMHO is to have someone show you (like Josh) and then try and dissect it on my own.