Answer:
Positive Expression of Identity:
-clothing choices
-song preferences
-hairstyle
-food culture
-creating art
Negative Expression of identity: (basically doing anything that isn't them but possibly for others)
-identifying with roles one doesn't associate with
-wearing items that they feel uncomfotable/distant/unsatisfied with
-acting/speaking/thinking in a certain way that is opposite of their true feeling
*hope this helps :)