Different trainers throw Frisbee discs for the dogs to catch while performing tricks.  A man sits with his dog in the grass and holds out discs in his hands.  The man balances his dog on his feet then throws Frisbee discs for him.  The man spins his dog and holds it in his arms.  A woman throws discs to her dog that jumps from her back.  The woman throws multiple discs in a row for her dog to catch.