<u>My friend Estella Perez </u>likes outdoors, camping, hiking, and football.
In the example above, the complete subject of the sentence is <u>"My friend Estella Perez"</u> that refers to the person who performs the action (i.e. the doer of the action). Besides, the example is a complete subject which is formed by the simple subject or a noun plus its modifiers. In this case, "MY" is pre-modifier "FRIEND" is the noun of the subject and "ESTELLA PEREZ" are modifiers that function as a restrictive appositive (i.e. a restrictive appositive provides essential information about the noun of the subject and it is not between commas). The rest of the sentence forms parts of the predicate.
