Well, well. Poe doesn't disguise his interest in her reaction to his reaction. (Reactception?) He might be observant, but he's not at all stealthy.

"I don't know what a brownie is either," he says, heading for the indicated table. He's curious, though. And he knows what chocolate is! That's something. BB-8 rolls forward, scans the table, and declares it free of known materials hazardous for human consumption. Poe winks at the droid, which seems to make someone buying blondies uncomfortable. "Thanks, Bee."