HONESTLY REALLY CHARMING not in a particularly rich/handsome way, but a little goofy and a little too genuine. Not sharp or high pitched but there's no chocolatey laugh here, just a joyful one. A loud laugh that can easily turn into a snort or some sort of physical reaction like smacking something/bending over, specifically when laughing at Friend Jokes- it's half an honest response to the joke, and half that he thinks his friends are the smartest + funniest people in the world and it's half admiration making his laugh so loud. also like 10000% a chronic cry-laugher like I think he is the most likely of all his friends to have tears in his eyes after laughing even if he's the least likely to cry over anything else, yk

THAT SAID I think those kinds of laugh are very limited post-death, though still sneak out when he's taken completely off-guard by unexpected humor. Olyzas has gotten him good a few times with completely out of left field commentary or unexpected crude humor. He laughs less often, but the same way- he's made of memory, and he laughs at things now with the same exact laugh as when he was alive. This makes it something fairly special, and thus unlikely to show unless he's especially comfortable.

He's also pretty prone to extremely undignified giggling when he's flustered, which is a very young, boyish sound that he covers his mouth for or fully turns away from, but on god you'd never hear him admit to such a thing.

(he also laughs in awe/surprise a lot; a different sort of laugh, breathy and quiet. It's his response to most things that amaze him, which is, in turn, most things- to laugh is to admire, and he admires a great many things in the world. He's not really conscious of this behavior, and does it a lot when he's reminiscing or watching people do things.)