Here’s a bit about the experts, whose lightly edited thoughts about the debate are below:

David Givens, who is the director of the Center for Nonverbal Studies, a nonprofit research center in Spokane, Wash. Givens also contributed to this helpful dissection of Clinton and Trump’s body language before the debate.

Patti Wood, author of the book “SNAP: Making the Most of First Impressions, Body Language, and Charisma.” Wood has experience analyzing body language as it relates to anger, gender roles and apologies, which all proved helpful during the 90-minute spectacle.