* For a hearty, loud laugh: "Ha ha ha!" or "Ho ho ho!"
* For a chuckle: "Heh heh" or "Chuckle chuckle"
* For a nervous laugh: "He he he" or "Tee hee"
* For a deep, booming laugh: "Bwa ha ha" or "Haw haw"
Ultimately, the best way to spell the sound of a man laughing is to use the spelling that best conveys the type of laugh you want to describe.