Introducing a new player to D&D can be tricky. You can help them with almost everything, but the two choices they need to make forthemselves are race and class. D&D 4e is very helpful when it comes to classes, in that you can explain them in terms of power sources and roles, but there’s really no way to help them pick a race, other than showing them the pictures in the various books.
So wouldn’t it be helpful to be able to describe a race in terms of keywords? You could then narrow your options by choosing what keywords you’re interested in.