My kids need to follow this link...

...because what teenagers have heard their parents say ten times, they usually believe only after they've heard somebody else say it too: you conform to those with whom you spend your time whether you mean to or not; so pick your friends carefully because in choosing your friends you are choosing your future self.

Later this evening I'll explain how this post ties into recent musings on Hope, since Joy is the characteristic fruit of Hope, and what Kathy seems to mean by "happy" is what I would characterize as "Joyful."