When you check in in London, the ground crew will give you two boarding passes. The first boarding pass contains information such as the seat number, boarding gate and boarding time from London to Frankfurt. Also on the second boarding pass, there will be the seat number, boarding gate and boarding time from Frankfurt to Beijing. After arriving in Frankfurt, in the international zone of Frankfurt Airport, just look at the boarding gate (e.g. E 19) and boarding time. If you have enough time, you can also visit duty-free shops, sit in coffee shops and buy some sausages to take home for your family to taste!

Frankfurt is a transit airport in Europe. There are many people from China who are going to board the plane for connecting flights, at least several hundred people every day. People from China and other countries in East Asia still have great differences in dress and manners. Then ask more questions!