Joker..

Are u a joker? Good one.. or Bad one.. Actually i don't really know how to differentiate a good joker or bad joker.. As long as the joke can make me laugh, then i will consider he/she as a good joker.. Sometimes my friends laugh so loudly about a joke, but i can only stare at them and many ??? on my head.. Haha.. I think this is due to my neuron acceptor is too slow.. Slow until i can't catch it.. Am i a ... ?