Think as if you're a semi-proficient computer user. They often don't have the vocab to articulate what they mean(if they know what they mean).<p>Look at the UI of an Iphone or Xbox360, or process for signing up for gmail for good examples of "not confusing." Both are dummy friendly.<p>Don't lose perspective after having been immersed in the technical world. I've seen some very smart people completely lose grasp of how a non-technical person thinks. Words like driver and BIOS freak them out - forget Python and API.