Manners The English have a reputation for being polite, and good manners are considered important in most situations. When asking directions, ‘Excuse me, can you tell me the way to…’ is better than ‘Hey, where’s…’.
Queues In England, queuing (‘standing in line’) is sacrosanct, whether to board a bus, buy tickets at a kiosk or enter the gates of an attraction. Any attempt to 'jump the queue' will result in an outburst of tut-tutting and hard stares.
Rounds When out for the night, groups of friends will often stand a 'round' in the pub: buying the people they're with a drink. The expectation is that by the end of the night, everyone will have bought for everyone else. If the group is huge, the time spent out short, or there's miminal chance of returning the favour, it's best to offer to pay for your own drink.