The United States held a presidential debate between Kamala Harris and Donald Trump. The current vice president’s expressive reaction to the former White House chief’s words has already become a meme, spreading among social media users around the world. During the presidential debates, the screen is split: while one candidate is speaking, you can watch the non-verbal reaction of the other. And while Trump was giving answers, Kamala’s face was striking in its facial expressions. Sometimes her expression was pained, at other moments she tilted her head back and took a breath, making the vice pre…