Liam's swing is fucking hilarious. Worm is grinning ear to ear, in a good-natured way. He feels no need to mock the Ogre. He just likes cartoons is all.
Gerrit is much more polished. It's clear he's been practicing. He gives the Stonebones a nod and a wink, acknowledging the show of technique without calling it out explicitly. He knows that G isn't one for making a show of himself.
"OK, bud," he says to Liam first. "I like your style, but we're going to start with basics. And that means how you hold your body and how you throw the punch. The wind up? It's cool. But not necessary. Unnecessary can get you hurt. Killed." And Worm's not gonna let that happen.
Walking around the Gargantuan, the Goblin touches him here and there (the shoulder, the hand, the waist, the leg) as he speaks: "First thing's first, it you're a righty, your left shoulder should face the opponent like this," adjusting the giant. "Stand with legs shoulder-width apart, knees slightly bent, left foot turned to point toward your opponent. Make loose fists, and hold your right hand by your chin, left hand down in front of your face. Chin down, eyes up."
He turns to Gerrit, "You've got a little more training under your belt G, so let's see you take up the same stance. Right here next to Liam." Without further direction.
Worm steps back to look at both of them, like an art critic taking in a painting.
For the hand-pad work, I propose the brawl rolls are to gauge execution, not cause damage. The better you roll, the better you punch. For assuming the stance, why don't y'all both roll Intelligence + Brawl to see how well you can follow the instructions Worm's just given.