Give a name to your inanimate, prized possession.  Whether it is your car with all the great memories, a guitar that shows the wear of endless jam sessions, that special baseball bat that helped you win the big game or whatever else it may be.  Give it a name and make sure your best friends know its name too.

As you grow up and become more independent you will want to do things on your own.  Sometimes I will give you advice because sometimes, I really do know best.  No sense in repeating my mistakes, son, but you certainly can learn from them. -- Dad

"With great power comes great responsibility." -- Uncle Ben from the Spiderman Comics

Play football in the rain.  As a kid, few things are better than diving for a touch down on a muddy field and being soaking wet.  Have fun!

Every guy needs a best friend, by that, I mean a dog.  They love you, protect you, learn cool tricks and can sometimes help attract cute girls.  Just make sure to take proper care of them, nothing worse than a neglected dog.