two girs from Montenegro are comming to Berlin !

Hello dear friends,
I'm Marija from Budva, a beautifull touristic city by the see.
Coming to Berlin next Thursday (24.) for 4 days holiday with a friend :)
We'll be staying in Mitte, near Alexanderplatz.
Any advice, tip, suggestion on what to do and where to go around (restaurants, clubs, wine bars...) and other parts of the city , or where NOT to go ? will be much appreciated and welcomed.
Would love to meet locals, and people living in Berlin and return a favor and help you to discover Montenegro beauty.
Thank you so much :)
Hope to see you soon !
Best regards,
Marija & Tijana