Hi Smiley,
the check list are minded to verify the correct execution of the basic survivival items performed during the normal operations.
In my company the PNF take the plastified list in hand and read carefully step by step each item. The PF (on some item both PF & PNF) reply in the coded way (I mean using the coded word(s)).
I my experience this is the correct use of the C.L., any shortcut introduces risk of mistakes.
We follow the basic Airbus SOP and chk-list, anyway each single company can costumizes the proper one, subject to authority approval. Generally the changes philosophy is affected by various situation i.g. the crews experience average, the number of monthly flown legs, the operating environment, the crew composition, etc. etc.
Fly safe...
Henry