: While it is not offensive to add milk and sugar to your tea, you should taste it in its purest form before doing so. England
: After stirring, place your spoon on the saucer behind the cup, its handle pointing the same way as the cup is. Argentina
: Don’t use the straw (called a bombilla) to stir mate – the leaves floating on top should stay dry. Morocco
: When drinking tea with a shopkeeper, don’t talk prices-or business of any kind- until the glasses are emptied. China
: Express thanks to your server by tapping your index and middle fingers lightly on the table twice. India
: It is considered polite to decline an offer of tea, at first. Accept only after letting your host insist.