I might as well start to give people a concrete example of how this works! Here is a short exchange from one of my Sinfonia oneshots I'm still oddly fond of ; v ;/
“I’m Leonhard, but call me Leon! I hate my full name, it’s weird!” the boy smiled, his dark blue eyes curiously observing Jet and his reactions. He didn’t seem to pay attention to his scar or even take glances at it, which admittedly caught Jet off guard. “We’ll be roommates this year! Want to hang out with me?”
This all came so sudden to Jet that he was at a loss of words. Hang out? With this cheerful boy? Surely this had to be some sort of joke. His friends were probably waiting behind the corner to tackle Jet or make fun of him or something.
But as Jet kept looking at Leon with a dumbfounded expression, he saw nothing even vaguely similar to hostility or bad intentions in Leon’s demeanor: he was relaxed, his hands lazily in his pockets as he kept smiling at Jet and waiting for his answer.