A pub is somewhere you should feel comfortable to spend the whole day and even take children during earlier hours. It should be a cosy place, decorated in a friendly and welcoming manner, if a little naff. There should be games available such as pool, darts and a quiz machine. The better ones will even have dominoes, chess and backgammon sets behind the bar. There ought to be a jukebox around with the entire Led Zeppelin discography or at least get the lads to bring their guitars and fiddles and we'll kick up a tune ourselves.
If you're there at lunchtime hours expect pies, fish & chips and a half-decent tikka masala to be available, if your in during later hours than you'll have to make do with crisps, pickled onions and Scotch eggs. If you're good mates with the landlord, however, he may be willing to make you a sandwich when you're absolutely tanked at 1.30 am.
If the pub takes even the least amount of pride in what they do there will be a good choice of real ales such as Hobgoblin and Old Tom served at cellar temperature as these actually taste of something unlike near-frozen mass-produced lagers. The good ol' water-of-life should be in abundance be it Irish, Scotch, Bourbon or otherwise. In short, a pub is the very focal point of civilised society.
The pub down the block is my favorite hang out