The sequence

After a while of talking, I ask, "May I snap your picture?"
They pose.

I show them the picture I just took.

When David has the camera

"Here, take my picture!"

"Thanks, I'll take the camera back."
"Wow, you're really close."

15 pics later..."Okay, that's good."

10 pics later..."No, you're done. Give me the camera. Now."