Answer:
My favorite expressions of cultural identity are: food, music, clothes, and language.
Explanation:
NOTE: This question is personal. Since I do not know what your cultural background is, I will use my own. Feel free to edit and change anything to adapt this information to yourself, in case you need to use it.
When it comes to my own cultural identity, my favorite expressions are food and music. As a Brazilian person, I find my country to be rich in flavors, different typical dishes being found in different regions - such as acarajé in Bahia, chimarrão in the south, or pequi in Goiás, which is where I come from . Other typical dishes, such as feijoada, are diffused, being found and consumed all over the country. We also have beautiful music resulting from the influence of several cultures. Samba, for instance, is a Brazilian rhythm that, when combined with jazz, originated the famous Bossa Nova.
Now, when it comes to other cultures, I am mostly fascinated by clothes and languages. Ever since I was a child, I've found Asian cultures interesting and beautiful. The traditional clothes found in the farthest East, such as the kimono in Japan and the hanbok in Korea, are characterized by a fluidity of colors and fabrics. The linguistic structure of their language is also mesmerizing. While my own language follows the subject-verb-object structure, Asian languages such as Japanese and Korean place the object before the verb. They also conjugate adjectives, which is just mind-blowing to me.