how do I Make a duplicate mesh skin? r17

Hi, I’m sure it’s out there because I have seen it before but I can’t remember right now.
How do I take an object (lets say a human face) and create a duplicate that is slightly scaled out?
This would give me two of the same objects but one slightly larger than the other but the larger still has
all the details. I thought the normal scale tool would do this but it didn’t work out for me or maybe I’m doing something wrong.