I don't know what options you have near you, but I release a lot in coffee shops or restaurants that allow me to do so. Also waiting rooms, like doctor's offices, hospitals, car repair shops. Once in a while at schools, a retreat center, a hotel.
I find that most of my books get taken, but as with others, only a few "write home." You must learn patience to be a BookCrosser. Of course you may hear back from a book soon, but most that write home take weeks, months, sometimes years to do so. But it is such fun to hear back from them that it is worth the wait.
Best of luck with your releases!