Musio the talking robot was standing on a lunch table at Manhattan’s original Shake Shack, unable to talk. The toy robot needs a Wi-Fi connection to access its language cortex. But even in this muted state, the stubby-legged robot with animated eyes drew curious glances from passersby. “I think it’s because Musio’s eyes blink,” says Celina Lee, a business development director for Musio’s manufacturer.