Faith and Belief are different.
You likely have faith in physical reality. You Know that it will hurt if you stub your toe. You Know you will likely die if you jump off of a 20-story building. So, if you have Faith on nothing, then you will likely be a very confused fellow -- uncertain of your shadow.
As far as abstinence from belief in theism or atheism, it sounds like agnosticism -- a condition of not knowing. People do that all the time.