Hiro looks up at Callaghan, both eyebrows shooting up and mouth forming a small oh; he hadn't expected to be signing any leases at all, so this comes as a surprise and stirs a faint little buzz of - gratitude? amazement? something - in his chest. He turns that same look briefly on Aroyan a second later. Small business owner at fourteen. Cool.

Hiro accepts the card, looking it over as he shifts his balance from one foot to the other as the excitement spreads through him. The confidence boost is enough that even with Callaghan entered into the conversation, he answers himself instead of deferring to the older man. "Yeah we'll be there. Sweet. Thanks."

There's a moment's hesitation before he offers a handshake, because that's what you're supposed to do in situations like this, right?