In our dojo the rule is to line up according to the dress code.To the left we have the beginners dressed without gi, then the people with white belt ( 6,5 and 4 kyu), then the people with white belt and hakama ( 3, 2 and 1 kyu), then the black belts.
I have problem lining up when I go to seminars. How am I supposed to know were to sit? And it seems like everybody else knows where they should sit! I always try to sit to the left off the hakama people but there is always a fight for those places