Do I need to queue?
What it really means
Yes — almost always. In the UK people form a line (a queue) for buses, tills, bars, toilets, everything. If you're not sure whether there's a queue, ask "Are you in the queue?" Joining at the back is expected; walking to the front is one of the fastest ways to annoy British people.
Context, tips & common mistakes
Yes — and the deeper answer is that the queue may be invisible. Britain queues for buses, tills, bars (a virtual queue held in everyone's head), taxis and anything else scarce, and the system runs on self-enforcement: the punishment for jumping is not confrontation but collective, silent, radioactive disapproval — plus the occasional devastating 'excuse me, there IS a queue'.
The newcomer survival kit is one question: 'sorry, are you in the queue?' — asked whenever a cluster of people might be a line. It costs nothing, is warmly received, and instantly resolves the ambiguous cashpoint huddle or the scattered bus-stop crowd. When two tills open into one queue, a single feeder line usually forms; join its back. And if you genuinely cannot tell where the queue ends, announcing 'is this the end?' makes you sound local, not lost.