He smiles to her. "How do I do that? Oh I wonder. Maybe revisit my earlier point?"
Pulling his hand away from her he turns and looks over the edge of the balcony.

"Stark.. Walk from the edge of this Balcony. And I can promise you not to die" It would not benefit him right now to cause any harm to her. He was just passing time and liked to show off his magic sometimes.

"You will simply walk on air. This is my gamble for that drink"