Don't open a car door into passing traffic
Help elderly folks when you can
Say "thank you"
Say "please" when asking for something
Read the instructions first
The meaning of the word "discretion"
The significance of giving someone your "word" (aka: making a promise)
Be kind to others
If you don't know the answer, don't be afraid to say "I don't know" rather than making shit up
Respecting other peoples property
I'm serious. The more I look around it seems parents today assume this wisdom is somehow absorbed from thin air. It has to be explicitly taught at an early age. Sadly, it's not.