For people with theater background these terms are common knowledge. But not everyone that enters improv has a theater background. For those of us without
“With improv, it’s a combination of listening and not trying to be funny” -Kristen Wiig
“Taking risks and making choices is what makes life so exciting” -Amy Poehler
“I’m convinced to do improv. All you have to do is listen to what people are saying to you, and then just add more information to what they’ve just said. That's all there is to improv, but it’s the hardest thing to do.” -Ryan Stiles
“You’re only given a little spark of madness. You mustn’t lose it.” -Robin Williams
“Life is improvisation. All those [improv] classes were like church to me. The training had seeped into me and changed who I was.” -Tina Fey
“Improv is mutual discovery, mutual support. [It is] the adventure of finding out what it is we’re doing while we’re doing it. All you know is where you’ve been. You don’t know where you’re going.” -Del Close