Steve looked at Jack curiously for a moment. He wasn't exactly sure what the man meant by Time travel, but he bit back his question for now.

"I am an open book, so I don't think that applies to me, but I do understand the need to keep somethings quiet," Steve stated. "I would never break Dr. Banner's confidence or trust like that. If you don't believe another thing about me, believe that," He finished earnestly, looking around.

His curiosity got the better of him, and he asked. "You time travel?"