My friend tries to prank me verbally all of the time. She tries to say something suddenly that'll shock me or confuse me or anything to get a less controlled response out of me. She's an ENFP, I think..
9 times out of 10, I catch it and turn it around. Occasionally she gets me, I react, and she finds it hilarious.
I don't get ridiculously animated or anything, but I immediately try to process what's going on and act at the same time. In other words, I get very confused temporarily and it's obvious.
Oh, and in high school a couple of my friends would sometimes watch me eating and thought it was that funniest thing in the world because of how slow I ate. Oddly, I process my eating too. I even strategically bite. I guess watching someone eat who is obviously thinking about eating would be kinda funny...