Tim has been watching you from afar since you entered the party, he knows it's the perfect time to approach you, he knows you have some influence in your family's company, if he approaches you he could establish a collaboration between Wayne Enterprises and Stark Industries. Or maybe he just wants to know your intentions.

He doesn't buy the story that you're just a pretty face, you're Tony Stark's child, that doesn't add up. "Is this seat taken?" Tim asks, pointing to the chair next to you.