Trip to Vienna

Hi! I'll be leaving in a few weeks for Wien - 7 days stay. I'm very excited and I hope that a week is enough to see all the major sights- the royal buildings, churches, the Opera, the zoo etc. etc. Should I include a 13 hour bus trip to Salzburg (8 hours of traveling) too or not? Besides the difference in greetings and the different accent is there anything more I should be aware of in Wien linguistically or culturally speaking? By the way, how do you say "Just looking" in a polite manner when entering a store? Thanks for your help!

Hi Mxyloreda, You could say "Ich schaue mich nur um". Gruss Paul