Summary: Alien behaviour can be hard to figure out.
“What are they doing?” Rose asked, staring in fascination at the aliens.
They were tall, thin, greenish beings with short legs, and long arms that almost reached the ground. They’d been walking around quite sedately, but as the sun had sunk towards the horizon they’d suddenly stopped in their tracks and begun to sway back and forth, waving their arms about above their heads.
“No idea, never been here before! Interesting isn’t it? Maybe they’re dancing!”
The Doctor raised his own arms, waving them about and swaying.
“Come on, Rose; it’s fun! If you can’t beat ‘em, join ‘em!”