Space Ghost looked around as he blinked, glancing at the blue card he had in his right and. He smirked, beginning to tap it to a beat.
"Tap tap tap... hmm." Space Ghost thought to himself as he squinted his eyes. "...tapping this card is fun. I think I'll do a bit more of it."
And yes, Space Ghost continued doing this for the rest of the story. What was his motive? The card was the only thing that could keep his attention, since there clearly was nothing better he could do. Saving the universe? Hosting a talk show? Pfft. Everyone knows that tapping a cards is the way to go.