The new nurse wears T-shirts and carries a bag with "RN" printed all over them.
The used nurse doesn't want the public to know she's a nurse so that she doesn't have to perform CPR on her day off, or answer health questions at a party.
The new nurse is actually excited about her first NG tube, and lays out the needed equipment in precise order just like she was taught in nursing school
The used nurse knows the most important piece of equipment is the emesis basin, and tosses everything else on the bedside table.
The new nurse knows how to calculate IV drip rates for every type of tubing.
The used nurse just fetches an infusion pump.
The new nurse will spend half a shift attempting to re-orient a dementia patient to reality.
The used nurse figures the patient's reality is probably a lot better than her version of it, and at times will even join him ("OK, how many ducks have you shot today? Wow.......looks like good eatin' TONIGHT!!").