I think it is very easy to answer to this question in a way that will steer the discussion away from your work, if you want. Just answer with general decription

I think it is very easy to answer to this question in a way that will steer the discussion away from your work, if you want. Just answer with general decription like "software developer, in a small company", whatever. Unless you are really unlucky any natural person will just lose interest. I myself ask this question now and then just because there is nothing else to talk about.