Adjectives in french change gender depending on a. who is speaking b. who is listening who is writing who is being described
In French, adjectives change gender depending on the noun they are modifying, not on the people involved in the conversation or the writing. Adjectives must agree in gender and number with the noun they modify.
For example:
- Un livre intéressant (masculine singular) / Une histoire intéressante (feminine singular)
- Des amis sympathiques (masculine plural) / Des filles sympathiques (feminine plural)