A public house, informally known as a pub, is a drinking establishment which is part of British culture.They are places where all ages and social classes mix to talk, do business, or just spend a couple of quiet hours before heading home in the evening. Most public houses offer a range of beers, wines, spirits and soft drinks. The interesting thing is that most pubs have no waiters— you have to go to the bar to buy drinks. This may sound inconvenient, but there is a hidden purpose. Pub culture is designed to promote sociability in a society known for its reserve. Standing at the bar for service allows you to chat with others waiting to be served. The bar counter is possibly the only site in UK in which friendly conversation with strangers is considered entirely appropriate and really quite normal behaviour. Don’t ever introduce yourself with an outstretched hand and a big smile. Natives will cringe and squirm with embarrassment at such brashness. Talk generally about the weather, the beer or the pub. If someone gets you a drink, you should reciprocate.The atmosphere is usually relaxing and cheerful, but it changes everyday.