As a theater staff, I can tell you: Pay attention to whether there is an opportunity to meet the actors after the performance. Some performers will arrange such activities in the lobby of the theater, so don’t miss it. In addition, in the days before and after the premiere, the performer sometimes holds lectures and meet-and-greets with the main creators or actors. These are all held to promote the musical. If you are interested, it is recommended to participate. The other thing is to applaud vigorously at the right time and at the end of the performance when the actors take their curtain call. It’s good to stand up and applaud or cheer when you are excited. If you want to take photos as a souvenir, you can take photos before the show starts and when the actors begin to take curtain calls at the end of the show. Do not turn on the flash. No photos may be taken while the actors are performing.