its the (sleepy) gas and it makes you laugh.
Nitrous Oxide. There you go :)
Nitrous oxide (N2O)
it depends on the person because i know it makes me laugh!
Nitrous oxide makes you giddy and some people laugh from the experience, thus it's called laughing gas.
it makes them laugh
a gland in your throught makes you laugh
other peoples laugh
A person who makes us laugh is a comedian.
Laughing gas!
when his best girl bud kira makes him laugh
it means that what ever your watching or talking about is funny and it makes you or that you watched a movie and you tell somebody about it and you tell them it makes you laugh