After the first week I was sitting in a park, reading and 2 guys come up to me and asked me to coffee.  Great, German friends, I thought.  It turned out to be very creepy and I ran home.  A number of men have approached me since then asking for coffee, sex, marriage, etc.  Now I ignore them or forcibly say NO! rather than stopping to listen.  It feels very uncomfortable and I feel much apprehension whenever I see a man approaching me again, even after I return home.