The Dilbert Blog:
You can fake most character traits if you need to. You can fake sincerity, kindness, compassion, optimism, and all sorts of things. But you can’t fake spontaneity. I know because I’ve tried, and it always comes out sounding crazy. I’ll blurt out something like “Let’s walk to Cuba,” and look at my wife to see if I nailed the spontaneous thing. So far, no luck.
I empathize. I’m not spontaneous either, and it drives people in my life nuts. It also means I can’t dance, and I have a terrible time coming up with anything creatively when presented with a blank slate.