Slowly, Tony's frozen smile faded, caught off guard by the statement. That wasn't part of the script, and he took too long to recover. His eyes darted towards Happy one last time before his smile redoubled, wondering what he was thinking, if he remembered Elektra was that same girl from the hospital, how the pieces fit together for him. Then back to Elektra, who had stalked him enough to know he was Iron Man-- or maybe she had just guessed, it wasn't like no one else had come to that conclusion before-- who probably knew his P.O. box in Grand Cayman, was she stalling for time? Was this all a calculated move to get his attention? It was a little weird, her just popping up right in the middle of Grand Central Station after so effortlessly disappearing for so long. The question just touched his eyes, barely skewing his smile while he patted down his pockets, saying, "Of course," with a kind of laugh, like it was an obvious mistake.
He felt his card holder where it normally was at his breast, but he continued to pat at his hips until he pouted towards Happy and very abruptly stopped an innocent pedestrian with a snap and a, "Hey!"
Startled, she stared with wide eyes and a slack jaw while he just smiled and asked her for a pen three times before he responded. Flustered, she rushed through her purse blindly to catch up, and Tony Stark waited genially with a hand out to have the pen slapped into before the woman was hurrying away without her thanks or waiting for her pen back in her embarrassment. Was that really Tony Stark?
He didn't appear to notice any of her distress, or her departure, and was taking Elektra's hand again with his easy smile back on her, pulling her towards him by her wrist. He probably didn't have to be so close to stain his phone number on her palm, his thumb pushing her fingers flat, but it did help to press a kiss under her ear and linger until she was the one to pull away.