Kuroko: General: A light and soft melodic chuckle. LOL: A snort, followed by a light and soft melodic chuckle.
Kise: General:This loser literally giggles, like a girl. LOL: A loud cheerful fit of AHAHAHAHAHAHA!!!!!!!!!!!! with tears.
Midorima: General: the tips of the corners of his lips twitch, ever so slightly, followed by an amused smile which lasts a few seconds. LOL: A well disguised silent laugh which is hidden by his hand. He also successfully manages to restrain his shoulders.
Aomine: General: He chuckles, and when he’s done theres’ an amused smile or smirk plastered across his face. LOL: A deep throaty BAHAHAHAHAHAHHA!!!!! followed by depending on the situation, obnoxious pointing, slapping of furniture and if he’s really, really getting into it, he howls and tears up.
Murasakibara: General: He raises an eyebrow, followed by a rude comment such as: What an idiot, or stupid, moron you get the delio. LOL: Very, very, very rare: A cute childish light laugh, his eyes light up and his smile is just adorable.
Akashi: General: An amused smile LOL: Canon fact: Akashi does not know how to laugh, but i reckon on those once in a blue moon situations when something gets to him, his eyes are filled with amusement and his shoulders shake as a pfffttt escapes followed by light melodic laughter; his smile remains hidden by his hand.
Kagami: General: A throaty, boyish laughter LOL: A loud bark, followed by howling, tears, stomach clutching and wheezing. Dork.