Finnick may not know Katniss very well yet, but he does know that she knows enough about what can and can't be eaten in the wild to save her and Peeta from eating the poison berries they'd later used to such effect.

"The fish have been okay to eat," he agrees, after a moment's consideration. "The few plants I know from home have been fine, too." He still doesn't know what he can trust here, and he'd hate it, if he hadn't grown so used to not being able to trust anything he didn't know for certain. This new place with its new plants and animals is unsettling, but he's used to that sort of fear, has been now for a long time.

He glances across at her, curiously. The way Katniss says that little can kill her that hasn't tried sounds suggestive of more of her unknown history -- from the past, or from the things she's seen in the time he's been in this place? It's hard to know for sure, so he doesn't comment, just passes over the basket he's already harvested flowers into.

"I wouldn't know what to do with them anyway."