They get angry, and Murellus makes a winded speech about why Caesar is not that great. He talks about how just recently the public climbed to walls and towers to see Pompey. Flavius and Murellus are both supporters of Pompey.
The plebeians are swayed by the power of persuasion, as seen when they switch their allegiance from Pompey to Caesar in a very short span of time. This fickleness is highlighted by Flavius and Murellus to emphasize the influence of rhetoric and manipulation over the common people.
They get angry, they don't like Caesar. "Hence! Home, you idle creatures, get you home!"
The cobbler's opinion of Caesar is positive and he mourns Caesar's death, while Flavius and Murellus condemn Caesar's rise to power and view him as a threat to Rome's liberty. The cobbler represents the common people who benefited from Caesar's rule, while Flavius and Murellus are part of the aristocracy who oppose Caesar's populist policies.
They decide to kiss in the middle of the court distracting all the other people, from then on they are called gay boys and are forced to live in the cave south of kindergarden.
A cobbler is a person who makes shoes. In "Julius Caesar" the cobbler tell Flavius and Murellus he's leading the people through the street because he hopes their shoes will get worn out. This would be a way for him to get more business.
the people keep switching sides
Please be specific as to which Titus Flavius Sabirus you mean. Although Titus Flavius Sabirus was the name of the emperor we known as Vespasian, it was also the name of his son, Titus, who was emperor after him.
They were "put to silence" by Julius Caesar. Caesar deprived them of their official powers and poistions in office.
a cobbler
The best way to get out of punishment is to talk to your parents. When you take responsibility for your actions they are usually willing remove your punishment.
Flavius was a Roman praenomen and there were many men who had the name. There was even an imperial dynasty, the Flavian, who carried the name. Flavius Josephus, the historian and all his sons had the name Flavius. The Conqueror of Masada was named Lucius Flavius Silva and Justinian's general Belisarius had the name Flavius. Constantine was also named Flavius.