Chewie makes a barking noise. It doesn't sound particularly confident, but generally positive. Which, considering Han, makes sense when a person is talking about keeping him out of trouble.

Han crosses his arm over his chest. "I do not make it more challenging than it ought to be."

Solo then glaces back to Carol, which makes him feel better. She makes him want to smile more than he's used to. He makes a point of politely walking her to the ramp to see her off and when they're just out of sight of his partner, he sneaks a kiss goodbye in there too. Or is it a kiss so long?