LOL.
I either order online or at least look the parts up online before I go in - sometime I'll print out something and say "I need this". And I know the computer in front of them makes them plug in info so I'll play along with "1977"..."Chevy"..."Camaro"...."350/VinL"....balh blah blah...it makes all our days better.
If I think I'll need help I'll go to the Napa in West Trenton. The older guy there (Jim?) is good. And they have books.