There are no adjectives in the sentence. Usher is a singer, making that a proper noun. Juggles is a action verb. Tennis Balls is a compound noun.
it isn't letting me submit my answer so i will comment on this answer.
because she doesn't think of Paris fondly and doesn't want to marry him. She wants to tell her mother this but doesn't want to disappoint her. She tells her mother that she will keep an open mind about Paris while at the party.
