It's case dependent, obviously, but I was taught to do something I found interesting when told what I'm about to relate.
The fact of the matter is, that a lot of the public has no idea what it is we do or are capable of doing.
One way to educate the public, is to actually do what we do in the house, rather than doing it all in the truck, in the driveway.
First off, why not spend a little bit of time actually treating the patient where we find them?
When the family arrives at the hospital the pt. is, hopefully, much improved, with IV's etc. in place. Although it is most likely our interventions that are responsible, EMS won't get the credit, the ED staff will. All the family sees is the pt. sitting in the bed, all this wonderful stuff having been done, and the pt. feeling better. They will credit this to the ED staff, since that is where they see the result of the interventions, and not who actually did those interventions. All EMS did, in their eyes, was drive the pt. to the ED.
And we are surprised that people refer to us as "Ambulance Drivers?" Why should they call us anything else, when that is all they see us doing? Doing everything in the truck on the way to the hospital shows noone anything.