I like meeting new people, especially those with different backgrounds from me. I like having conversations about politics and current events. I spend a lot of time doing professional reading (about math, economics etc.) and when I read for enjoyment, I try to read something in German.
I work out a lot: I weight lift three to four times per week and jog on a regular basis.
Movies: Dogma, Hangover I and II, the Harry Potter series, the Star Wars movies, Office Space, Hamlet 2, Ted, Guardians of the Galaxy, Deadpool
Music: I like a lot of music from the eighties (OMD, Midnight Oil, etc.), I also like Neue Deutsche Welle (Geier Sturzflug, Peter Schilling, Nena, Falco, usw.)
Books: The Price of Inequality by Joseph Stiglitz, The Signal and Noise by Nate Silver, Wahnsinn Amerika by Klaus Scherer, Real Analysis books, Der Baader Meinhof Komplex by Stefan Aust,
What should I do on the weekend to meet people.
Math and economics.
The Buffalo Bills.
One point: I believe this question was put here to help people start conversations. People seem to take it so seriously. Write something funny.