Core Insights - The 35th Qingdao International Beer Festival is currently taking place, featuring a new "Beer Exchange" that has gained significant attention from both local and out-of-town visitors [1] - The "Beer Exchange" operates like a mini stock exchange, with over 20 beer taps offering up to 10 different fresh beers daily, allowing customers to "trade" based on price fluctuations limited to 20% [1] - The festival has introduced smart service innovations, including robotic arms for precise beer dispensing and interactive experiences with robots and robotic dogs [1] Group 1 - The "Beer Exchange" concept has attracted a large number of visitors, creating a unique experience likened to stock trading [1] - Customers can experience emotional value as they witness the price changes of beers they have purchased, enhancing the overall enjoyment of the festival [1] - The festival features a variety of interactive technologies, including robots that provide welcoming services and engage visitors in activities like "virtual toasts" [1]