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Today on #DoubleTalk, we're talking to worldrenowned body language and human behavior expert Mark Bowden. As a panelist on YouTube's #TheBehaviorPanel, Mark analyzes relevant footage from cases of public interest—then breaks down how subject's body language and behavior may be relevant to, or explain the eventual outcome of the case.

We discuss what we can learn from tragic cases like that of Gabby Petito and Brian Laundrie, the most effective way to confront someone who has overstepped your boundaries (and that person's ideal response), how to know when it's time to walk away from a relationship, and how to know when it's time to RUN.