Here is yet another set of `improv rules` that`s been circulating for a while. We`re not necessarily endorsing them, but they seem to be a bit public domain. Your mileage may vary. Also take a look at Eleven Commandments and Ten Commandments . And never forget: it`s good to know the rules (some rules) but once you`ve mastered them, by all means break them.
Read Improvise - Scene from the inside out for a discussion why rules in Improv are not all that relevant.
Here goes:
Keep away from people who try to belittle your ambitions. Small people always do that, but the really great make you feel that you too can become great --- Mark Twain