Doll Show 52 Winter Asakusa 2018 / January 8 (Tuesday, holiday) Tokyo Industry and Trade Center

I've never been to a doll show. No shows seemed to be scheduled in Okinawa, Japan either.
Yet here is one in Asakusa Tokyo! ドールショウ公式HP
I will have to see about making the stars and planets align just right so I can take my teenager to this event.
Should be fun!
The site has all the information needed for newbies such as important don'ts.
Etiquette will not be a problem.

In addition to the don't dos, what did you learn from your first convention that you'd wish you'd known before going?
For example, if I had know that the vendors only accepted yen, and not visa, I would have gone home with a lot more BigBang souvenirs when we went to Tokyo for a concert last year.....