Scotland especially the highlands is famous for the hundreds of brands of Scotch whisky it produces. It seems to the visitor that every village makes its own particular brand, so much so that somebody compared a tour of the highlands as being similar to "driving through a drinks cabinet"! There are around 100 whisky distilleries in Scotland and nearly half of them welcome visitors. Opening days and times can be up to seven days a week in Summer and sometimes they close in the Winter.
Bars are the places you meet people and where you have a good time. More than in other countries, bars are very lively and it is easy to get to know people when you're travelling alone. The Scottish are very welcoming, so it's not unusual that they will buy you a beer even though you just met them.
The legal drinking age is 18 years old, and many pubs and clubs will ask for ID of anyone who looks younger than mid-twenties, penalties for those caught buying drink for those under 18 can include a large fine. The penalties for drinking and driving are severe. Drinking laws are complicated slightly by the fact that a single glass of wine may be served to a 16-year old, provided it is with a meal.
Beer
Beer, especially the ales, is measured in pints. one pint equals just over half a litre 568ml. scottish micro-breweries are doing quite well, possibly thanks to the "campaign for real ale" in recent years.
Irn Bru
(http://www.irn-bru.co.uk/) - a highly popular, fizzy, bright orange-coloured soft drink that is supposed to be the best cure for a hangover be aware that it is loaded with caffeine and is acidic enough to clean coins!. it's so popular, it even outsells coca-cola, which no other native soft drink can claim. supposedly it is made from iron girders ! to provide a balanced view however, it should also be noted that coca cola will clean coins as well. red kola and sugarelly liquorice water is similarly consumed.
Whisky
Scotland's most famous export note the lack of an 'e' that makes scotch whisky unique!. a good way to instantly endear yourself to the locals is when ordering scotch in a pub, always ask for a "whisky" or simply "a half" - and the bartender will know exactly what you mean in much the same way as asking for a "pint of beer" in ireland will mean you are automatically served guinness. asking for a "scotch" will immediately identify you as a foreigner!