My girlfriend is a beauty practitioner. What is the best thing to talk to her about?

Men. There is no need to tell her too much about his work. Just pay more attention to her. That's good. You said she prefers to dress up. Then you must not know how to dress yourself at all. Making a phone call is not something you usually think of or say. Tell each other about what happened during the day. There is really nothing more to say. You can start being funny. ~~Tell some cold jokes or something. In fact, it’s quite normal to have nothing to say. ~Don’t take it too seriously.