5. "What's your favorite Blues Hammer song?"
We love Jimmy Kimmel for many reasons, not least of which is his Lie Witness News series, a regular segment that features people so unwilling to admit ignorance that they'll fake expertise on things that, um, don't exist. If looking foolish isn't enough of a deterrent, we've got another great reason to confess you're unfamiliar with something: People love introducing others to the things they discover first. When your friend brings up the artist Marina Abramovic in conversation, you're doing him a favor by asking, "Can you remind me who that is?" instead of gushing, "I adore her paintings" (hint: she's not a painter). He'll enjoy telling you about his experience at one of her performances, and by the end of the conversation, you'll know more than you did when it started.