As many as 100 million Americans could potentially tune in to watch Tuesday night's debate between
President Trump and former Vice President
Joe Biden — needless to say, the pressure is on. Scott Rouse, a body language expert, spoke to Politico's Mary Newman about what the candidates' give-away "stress indicators" are, and how to look for them during the debate when things start to get tough.Rouse explained that when Trump begins to feel the pressure, he'll have his "arms close to him ... protecting the sides of his body, his chest, his heart, those types of things."But don't look for those same tells in Biden — it's a "completely different story there." When the former VP gets stressed, "he'll slow down a little bit. But if he gets stressed and it's about something that he's right about, that's when he's gonna get loud, with the open-handed gestures, everything's open … and he gets those eyes open and gives you everything, 'here's the information I'm trying to give you.'"Learn more about the candidates' body language below, via Politico.