2010 AWI World Finals Part I
Kirby McIlveen, Rick Rauwerda, Christina Curtis, MarkShort for “Positive Marker”, a Mark is a word or signal given at the exact moment a desired behavior is performed. It’s like a clicker. Mark can also mean the act of marking... More Muir and Andrew Han jam at the 2010 AWI World Finals in Naperville, IL.