What was really going on when Lauren visited her boyfriend Robbie at college, surprising him as he sat on a couch with three girls? It turned into TikTok’s hottest clip, of course, with millions of fans picking apart whether the 20-second clip was definitive proof of Robbie cheating. After watching roughly 6,000 response videos breaking down theories, we talked to actual body language expert Traci Brown, who reveals which people in the TikTok you should be paying attention to — and it’s not Lauren or Robbie. “Something is going on more than what we know,” Brown tells Rolling Stone. This week we also bring you a look at what makes Emily Mariko’s leftover salmon videos so appealing, and a special double-Himbo of the Week.   Don’t Let This Flop is a weekly podcast from Rolling Stone, centered around a roundup of this week in TikTok trends and memes, from dances to recipes to makeup challenges to creepy viral videos to celebrity videos to grassroots campaigns intended to raise awareness of social issues. Join hosts Brittany Spanos and EJ Dickson as they unpack their significance, with a special guests to break down the latest trends in TikTok. Some of these stories will be silly; some will be more serious. All will have wider implications outside the world of TikTok. Learn more about your ad choices. Visit podcastchoices.com/adchoices