For example, if I were to describe myself, I would largely avoid the physical. It seems silly, but I just don't look at myself physically. I think of myself as a thinker - I would talk about the thoughts I have and the subjects that I enjoy learning. I also think of myself as a doer - I would talk about the activities I like to do and what company I keep. I would never think to talk about my shaved head, my beard, or my skin color because they don't matter to me - they are not how I define myself.
With that said, sometimes I do have to find a way to make sure people can spot me in a crowd, then I probably would mention those things. But that really depends on what everybody else in the crowd looks like. If they all have beards and shaved heads and white skin, then I would mention my clothes or jewelry.
Ultimately, as an author (and as a person), you will present things and people in the ways you think matter. It is part of that fundamental uniqueness, part of your authorial voice.
As a reader (and also as a person), pay attention to the things people present. They will say just as much as, if not more than, the words they actually use.