1-Intro to how the game currently is.
2- Intro to WASD, pros
3- cons
4- summary.
Heres some tips
WASD requires 3d graphics, and needs a good camera function for it to be viable. Some games try WASD but lack 1 of the 2 (or both) and it's the fail.
Pnt - Click is sometimes better, but why not offer the option of interchangable for those cases where you would rather just ... click click click click.
Be friendly in the suggestion, with a subtle hint of aggresion, to get your point across without being stingy.
