Thought he might not be able to read quite what she's thinking, he can still see she's thinking something. Something that she doesn't voice. He doesn't question what.

Truth is if he knew she was thinking that, he'd likely suggest she tries it. Always impulsive, Jack Harkness.

"Well, at night there's always the groups of women being chased by the seagulls for their chips, but that's not so fun." He laughs, smiles. "We could go somewhere and talk. I'd take you to my base but... it's a bit hazardous, and some of my team might still be around."