This is exactly how fights at my school always started.
The two belligerents would approach each other with head raised, arms outstretched and chest puffed out. This display ensures they appear as physically imposing as possible while simultaneously demonstrating confidence by rendering themselves completely defenceless.
Video: AKIRA OOYAGI
This ceremonial posing is accompanied by rhetorical questions ("and what?") and repeated voicing of impatience ("come we go!") as each antagonist attempts to encourage the other to back down. Meanwhile, crowds of onlookers gather, excited by the prospect of a "ruck".
I don't think Catholic school was supposed to be like that, but at least we didn't fall over as much as these Stilt-legged Flies.