In BR we laugh with "KKKK", "rsrs", "huehuehue" mostly and I remember that when I used to play Ragnarok I couldn't laugh as "kkk" because it was tagged as a bad word for the server and I'm sure that 99,9% that used to play at that time had no idea of the reason it was a bad word.
Another fun fact is that when I was learning English and whenever I saw someone write "kk" I tough the person was laughing while s/he was actually saying "ok ok".
It's nice that each place has a different way to laugh, like: "jajajaja", "55555555555", "wwwwwwwwwwww"
By the way, we make a joke here in Brazil about the LMAO, it sounds and is written similar to "LIMAO" which means "lemon" in Portuguese.
Usually, here in Brazil, we don't use "lol" like Laughing Out Loud, we mostly use it like irony and not an actual laugh. (kinda complicated to explain).
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