As someone who played in Miribar for a while back in 2nd ed., the things I remember (and these might be ideas that my DM came up with) was that every place we went inside the city, whether business or home, the greeter offered us mugs of beer. The other thing was that since dwarves were so prominent and humans coexisted with them to a great degree, human women didn't remove any facial hair that they may have. Miribar is also where my gnome thief illusionist found his wife, a gnomish master librarian whose notable distinction was her invention of a method to sort and catagorize the many volumes of books that existed in the library.