Jump

When I say "Jump," he says "How high?" 
When I say "Jump," he says "How high?" 
When I say "Jump up to the sky," 
When I say "Jump," he jumps and jumps and jumps. 

Jump. 

When I say "Jump," he says "How high?" 
When I say "Jump," he says... 
When he says, "Jump," I say, "How high?" 
When he says, "Jump," I say... 
How high?