Only the pronoun changes; the ball stays the same object in both versions.

In third person, I becomes the character's name to show the narrator is outside.

The feeling stays the same; only the narrator's pronoun changes to third person.

The possessive my becomes a name with 's in third-person point of view.

We becomes the twins, and the location park stays unchanged in third person.

With Kai as the subject, the verb changes from am writing to is writing.

In third person singular, have changes to has to agree with Mia.

The place school stays the same; only the pronoun and verb ending change.

My becomes her to match Ana as a third-person singular female character.

Each I sentence becomes a third-person sentence by swapping I for the character's name and adjusting the verb.