While eating a hershey bar, do you break it up in tiny little pieces or do you eat the whole bar unbroken?

Varies. If I only want to eat part of it and save the rest for later or share some of it with friends, I'll break it up. Same usually if I want to take my time eating it or don't want to stuff my mouth. Sometimes though I just want to scarf it down so I'll simply bite into it.