"What are you doing, Clark?"

"Setting up to take a picture of Superman."

"Superman? He's here?"

"Not now. But he'll fly by later today. And when he does, this sensor will trigger the camera to take the picture."

"How do you know?"

"Sorry, Lois. It's a trade secret I picked up from Peter Parker. I promised never to tell."

When in doubt, think about penguins. It probably won't help, but at least it'll be fun.