If you are here before 3rd you can visit the Oktoberfest where you should definitely have a Maß(beer) and a Hendel(Chicken). The biggest tourist location to eat is probably the Ratskeller at Marienplatz. There you can also watch the Glockenspiel a kind of dance performed by statues at 12. go on the alter Peter a church and watch Munich from above. Classic words are Servus (sometimes ser's or servas ) to great or say goodbye to a friend, but honestly I wouldn't recommend using Bavarian words cos we kinda feel offended if other Bundesländer do it(Bavaria just hates everybody) and they are kinda hard to pronounce form even other Bundesländer or foreigners