Juan plopped himself on the floor. He twisted his body into one shape, a second shape, a third shape, a fourth shape. “That’s it!” he giggled. His sister took photos as he made the four shapes again. He sent the photos with a text to Lalo – “Hi! Can you guess what I’m doing in the photos?” Lalo texted back. “Hey, Juan. No way. Send me a hint.” What secret message was Juan sending to Lalo?