Good luck! And remember that those who only come and look will also take away good memories of your work. I enjoy exhibition openings and talk about some for months afterwards although I rarely buy anything.
A very mixed feeling about the whole thing though it was a great turn out and people mostly seemed to enjoy themselves. One thing it convinced me of is that I'm not going to have another one in a hurry. Better rather work on a new project that will not need to be exhibited.