I think many of you are addressing something else entirely. If you meet someone and are trying to give him a picture of what a Yid is, you aren’t trying to tell him the underlying foundations or the basic Mitzvos.
I would say, our connection and awareness to our history; our general goal and purpose; and one point of our way of life, say, the idea that we remember Hashem in all our actions. Meaning, that before eating we have to make sure it is kosher and prepared kosher and then which Bracha. When we get dressed, where we get dresses, how, in what order, and of course Shatnez and Tzitzis. We must watch our eyes and our speech.
These three things are what make us stand apart. It is a summary of who we are.