French

Walking into ANY French establishment — skipping this is considered rude, not efficient.

A Parisian colleague holds the door — this plus a slight nod is all you need.

Ordering at a brasserie — politeness is a performance in French culture.

Getting a waiter's attention in Paris — wave optional, phrase mandatory.

When a French native speaks at full speed — admitting it is respected.

Any market or boutique in Francophone Africa or Paris.