The game is not focused on the details of mundane action.
...To the point that any action actually based on the four attributes in
Nobilis is considered
miraculous, and simply won't fail unless countered by another miracle of equal power: a character may perform one of those per turn, along with one
mundane action such as jogging around or debating in a regular fashion. One of the attribute ratings, Aspect, covers by itself all the physical, mental and social activities that people generally are capable of, as a kind of a measure for baseline competence and not unlike all the attributes in most other RPGs rolled together, although those abilities can still be fine-tuned further by picking appropriate Gifts and Handicaps. The finest feats performed by the most talented mortals correspond to the
lowest levels of Aspect: winning a gold medal at the Olympics would have the difficulty level of 2, for instance, which renders it completely effortless for any Noble whose own Aspect attribute (ranging from zero to five) is at least equal to that. And something that anyone at all might do with a bit of luck? That's difficulty 0, and not even worth resolving mechanically unless the player wishes to ensure that there's no chance of failure whatsoever. No Noble slips on an icy street unless it's either a deliberately taken risk on their part or a sign of some supernatural enemy moving against them.
Unfortunately, the book can be fiendishly difficult to find at a reasonable price, at least until Eos Press finally gets around to publishing that rerelease which they announced a while back. For a small sample,
here you can find the chapters 1 and 7 (the introduction and the example of play) which Guardians of Order used to offer as free PDF downloads at their now defunct website before going out of business, along with the handy "So You've Been enNobled" pamphlet which explains some of the basics of the setting.