The guy's problem seemed to be purely that doubleclick-mode is on by default for newcomers. I always thought that was a bad idea. Other than that "click on the NPC" is really about as straightforward as it gets.
I don't think throwing even more additional info at new players is going to help, this guy was already clicking through most of his dialog cause he thought it was too much.
<nostalgic mode>Back in my days, just trying out all the keys on my own and seeing what they did was part of the excitement of a new game. I weep a silent tear for the current generation of gamers who ragequit if the controls aren't identical to WoW's.</nostalgic>
I don't think throwing even more additional info at new players is going to help, this guy was already clicking through most of his dialog cause he thought it was too much.
<nostalgic mode>Back in my days, just trying out all the keys on my own and seeing what they did was part of the excitement of a new game. I weep a silent tear for the current generation of gamers who ragequit if the controls aren't identical to WoW's.</nostalgic>