Just go there for an interview. Many people in plain clothes are just looking at the venue. Talk to them and remember to dress in fashion.

They like to chat with others, and later you will say that you want to work here, too. Everything's fine.

Last time I ate stinky tofu there, I accidentally knocked over a man's bottle, and then he chatted with me. Finally, I found out that he must have filmed the scene. As a result, he had to leave his contact information. There will be something to contact in the future.

There is no time limit.