No, Shi did not recognize Perfect Cell. He started to slowly shake his head as a silent answer, wondering why the question had been asked that way. Was he supposed to recognize this person? Or maybe it was a subtle hint?

"Oh." Thinking he had been prompted to stop being rude and introduce himself, Shi seemed to perk up. "We haven't introduced ourselves, sorry. I'm Shi--"

And then Cell was floating? Shi's surprise swallowed his introduction. The next question, too, caught Shi off guard. Why did it matter where his home was? He turned his head towards the city regardless. "Um... Yes. I'm staying with someone in an apartment... Why?"