Before you can order at all, you must learn the correct bar-counter etiquette. You will notice that the bar counter of the pub is the only place in Britain in which anything is sold or served without the formation of a queue. Many visitors have observed that queuing is almost a national pastime for the British, who will automatically arrange themselves into an orderly line at bus stops, shop counters, ice-cream stalls, lifts, entrances, exits, and sometimes in the middle of nowhere for no apparent reason.
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Whether you are male or female, and whatever the sex or social background of your native companions, the words “It's my round - what are you having?” will always be appreciated as a friendly gesture. This line may not be in your phrase book, but it is one of the most useful sentences in the English language.
Many of the rules on this site also apply in Australia.