Does laughing gas really make you laugh?

Stupid question to ask if you've been to the dentist in the last decade.

Laughing gas kinda makes you laugh. It acts as an anaesthetic-type agent and makes you feel a bit tipsy, like alcohol. If you have some more of it you'll feel sleepy.

In 1799 Humphry Davy observed its psychological effects. When he noticed his subjects acting like drunkards he coined the term laughing gas and suggested it be used for surgical operations to alleviate the pain. No one paid attention to him, though, and people used it instead as a recreational drug at carnivals.