This kind of person is called a wedding person or a wedding person in the industry. Your question is actually meaningless. Who does a man often contact? This has nothing to do with his career, let alone whether he is serious. Generally speaking, he often comes into contact with customers and other wedding people (host, cameraman, photographer, makeup artist, planner, producer, sound and lighting engineer, on-site staff), as well as hotel staff (because of the on-site relationship). From a professional point of view, it depends on the person's social circle. So don't speculate, learn to observe and understand a person. I hope it helps you.