Improvisation, the main thing is it teaches you to be in the moment and present in the moment and be reactive and proactive for what's going on. Someone gives you something - a lot of actors are a little shut off, so they're just doing, "This is my character, these are my lines, I'm going to just send it to you then you send whatever you're sending." Improvisation teaches you to really be listening.
John C. ReillyWhen you're dealing with younger people, if you start acting like the leader or the expert or the elder statesman, 'well, let me tell you how this is...,' that's a great way to alienate young people and make them hate you.
John C. ReillyI don't know how to be like a Bill Murray or a Will Ferrell, these guys who know how to make a line funny just by, I don't know, some extra-sense perception. I only know character and emotion and real acting; that's all I know how to do.
John C. Reilly