The author was explaining the differences of <span>Japanese-style conversations and Western-style conversations, and how they sort of went back and forth with each other. The author described it as "Volleyball" or, "Tennis", where the part of the title comes in, "Ballgames". </span>
Frequent frustrated fluctuating
Choose the verbs in the sentence. There are only three of them in this
sentence. Only one of the verbs has a modifier that describes the verb.
That word is your adverb.
Shrewd or spirited is the meaning to your question