The language, it's awesome and impossible to attempt without sounding silly. The North/Noord, it’s the Brooklyn of Amsterdam. Smoking weed isn’t unusual or ‘cool’, it’s just the norm. Boat life - this city has 165 canals and floating around is a killer way to explore.
Bicycles have some sort of legal immunity, they will run you over and it will be your fault. If you’re hankering for a post-party Bloody Mary and good feeding, Little Collins or G's are your best bet. Don’t dangle a raw herring into your mouth by the tail. It’s bad manners.