[her eyes immediately lock onto it because she's still not sure if it's horribly burned or not, but no -- it's not really a burn. it's weird?! wait, for all she knew, he might have had a tragic accident and her question could be bringing up horrible, painful memories--]

You don't have to hide it!! I'm sorry I yelled, I was just a little surprised -- [she realizes that she's still staring at his arm, and hastily looks at the net. DON'T STARE PETUNIA!!] Wow, your knots look very nice! Those are very tight-looking knots...