He takes in that she's carrying an awful lot with her -- an apt metaphor, he thinks to himself -- but doesn't state it out loud. Instead, Grantaire smiles a little at her retort.

"In that case, then." He gestures her to come on into the ring when she's ready, spinning his own baton between his hands and loosening up his shoulders. He doesn't intend to jump right into full combat, since she's only just gotten here, but if Jyn wants to set a hard pace, he's ready for one.