Ein Prosit: very simply, "Cheers" - this should be pronounced with much gusto while attempting to clink your glass of beer without sloshing the contents of your neighbours.

Wunderbar: literally meaning "wonderful" and can be applied to just about everything you expereince during Oktoberfest - the food, the drink, the person sitting on your lap at one o'clock in the morning. 

Zicke Zacke Zicke Zacke Hoi, Hoi, Hoi: untranslatable - Just join in, loudly 

Ledehosen, a nippy Canadian October may prove to be a bit cold for strolling about in these leather shorts with suspenders.

The wise reveller, therefore, usually dons the longer Knickerbocker for the outdoor festivities.

But you can simply wear your Oktoberfest hat and a huge grin and you'll fit right in.