He has no way of knowing what Tony's thinking, but he mouths a you're welcome that Tony will never see. He doesn't know how else to let Tony enjoy the party, aside from taking him around to see people. He does kind of feel like he's been hogging Tony's time. But he doesn't know how to ask who he wants to speak with or what Tony actually wants to do.

He starts by picking up the sack and handing it to Tony, as if to ask, who else are you supposed to get gifts to?