Answer:
It reveals a deeper level of contempt when he insults Octavius.
Step-by-step explanation:
In these lines, we see that Cassius refers to Octavius as a "peevish schoolboy." The word "peevish" indicates that someone is hard to please, temperamental, irritable or quarrelsome. These are all qualities that Cassius assigns to Octavius. The remarks highlight how young and inexperienced Octavius is, but they also show that Cassius has a high level of contempt for Octavius.