After dropping the bottle Lex looks up to see someone staring. This sort of thing doesn't bother him, he's gotten used to life in the public eye. Perhaps this is someone from his world who would be familiar with the Luthor name. He takes a longer look than he normally would have out of curiosity and when he makes out the face Lex has to take a step back to collect himself.

He crosses the other side of the street and walks up to the young man, purposeful, but with a sense of almost forgotten familiarity. "Lucas. You're the last person I would have expected to see here."