Gary Schwartz on Spolin!
Listen to Gary Schwartz who was a student and friend of Viola Spolin.
„Go without preparation. Go without slightest clue what’s going to happen next. Go into unknown space without a gender, a preparation, without anything, and expect that something will happen. Allow your self to be!”
See also this: https://www.youtube.com/watch?v=9ZQi_I8w4R0