The following was taught to me by my dear friend, Reginia. If it worked on someone as stubborn as I am, it will work on anyone.

Just tell them this:

  When you say, "I'm bored," you're actually saying, "I'm boring."

Essentially, bored people are boring, and boring people are bored.

Surprisingly, it's entirely true. It also works in reverse; interesting people are interested, and interested people are interesting. Fascinating people are fascinated, and fascinated people are fascinating.