It's a genuine smile as he shakes her hand, always a genuine smile in a new world for a new person. Sometimes, O'Neill says he smiles too much, but from Jonas' perspective, there's no such thing.

Not when they're the first alien faces so many people they meet see. And if not the first alien faces, the first friendly ones. So why not be as friendly as possible?

"Exploration? Really?"

The smile turns into a grin. "That's ... amazing. The only ships I've ever seen have been warships or transports."