"Doctor, what were you doing out there? The hokey-pokey?" Amy asked him.
The Doctor straightened his hat. "What's wrong with the hokey-pokey?" He spun across the glass floor of the TARDIS. "You put your right hand in, you put your right hand out…Did I ever mention that I lost one of my hands once? It's okay, I grew a new one."
Amy blinked at him. "What are you? A starfish or something?"
"And you turn yourself around... that's what it's all about!" He took Amy's hand. "Come on, dance with me! That's what it's all about."
"That's it? All of time and space, and it's about…the hokey-pokey?" Rory repeated.
"Why not?" The Doctor asked rhetorically. "That's what it's all about! Yeah!"