Do they wear gloves that they can drop before they fight? ....or is there no formalities before they fight?
Quite the opposite. Fighting would be considered extreme and outrageous behavior in cricket.
Back when I played (looooong time ago) you'd even cheer (well, clap) for the other team when they executed a good move of some type.
Yelling was verboten, unless it was for the fielders to shout in excitement ("hows that?" or better put: "HUZZATT?") to the umpire for a decision when they thought they had put a batsman out.
Mebbe the manners are different now, but probably only a matter of degree.