Did Gibbs Know Jack Was Watching Him During Interrogation in 'NCIS'?

It's not like Gibbs not to know what is happening outside the interrogation room on NCIS. He usually has an idea that his team members are watching, especially if there's a chance he will do something questionable. While he told Jack to leave him to his work, there's a high chance that he knew she was going to watch. Even if she is new, he knows enough about her already to create his own expectations. Here's why he likely knew she was watching.