What people are less aware of, in my view, is the need to also develop what I will call the Minor Blurb. Now, as everyong knows, the Major Blurb is the one you use to get a job, to show off to your academic friends, and to introduce yourself at conferences. To use some terminology that I hate, the Major Blurb is the ready-to-hand (sometimes, present-at-hand) tool that aids in the worlding of your world. But, the truth is, your non-academic friends and acquaintances won't understand your Major Blurb. If I were to say to my new neighbors, for example, that I "deconstruct the concepts of truth, forgiveness and memory in order to investigate the aporetic nature of social and political decision-making"... well, all they would probably hear is that I "blah the blahdee blah, blah, blah in order to blahdidee blah blah."
Especially for those of us in philosophy, the quagmire immediately following the question "so what do you do?" is already familiar. If you are lucky enough to get past the next stage ("I am a doctor of philosophy in philosophy.") without any visible bruises or having to explain that, no, that doesn't mean that you can offer counseling to your interrogator or prescribe him/her drugs, then my advice would be to prepare yourself for the next question: "What kind of philosopht do you do?" IMMEDIATELY DISCARD THE MAJOR BLURB! Here, the Minor Blurb is your friend and your shield. Make sure that you have it handy, that you've practiced it to the point that it's all shiny and pretty, and then deliver it quickly, confidently, and without any eye contact that might encourage subsequent questions.
Then, I suggest you follow-up with something like, "so, do you think it's going to rain this afternoon?"