Okay, very unprofessional of me as an author. But I'm tipsy and need to share advice to those younger than me. Or those who wish to hear this.
A thing I've learned since childhood that's helping me with my job is how to be polite to strangers. My parents taught me that and how to address those older than me. My manager, however, says to be a little more casual, but to still be polite. So even though I'm an adult, there are still a lot of things to learn, even if you're younger or older.
It's amazing, really, how much we can learn despite our ages. To be polite to those who you don't really know, but then just act like a gremlin to those you really do know. Don't act like a gremlin at your job though, just to family and close friends.