– In malls, all of the shops have (in addition to the shop name) labels for what they are (such as boutique, stand, restaurant, etc). As if you wouldn’t know that a shop is a shop without the generic label.
– At restaurants, when they bring the check, they always stand over you watching while you fill out tip amount and sign. In my country, this is considered rude.
– On several occasions, I have noticed people flushing while urinating (not waiting to be done).
– I’ve come to understand this is a Chinese thing, but no buildings seem to have a 4th floor, as it is considered unlucky. They instead have a “3a”.