Why do so many "comedians" laugh at their own jokes?

@TheOneyouwerewarnedabout Good point. Maybe it's like the fake laughter we often hear on sitcoms that are meant to be signs for the audience watching that a joke has been told, so it's time to laugh ('The Big Bang Theory' comes to mind, because that show was painfully not funny).

@Thatlady Real comedians, ones that are actually funny, don't need to employ "tactics".

@Pambie True.

@HijabaDabbaDoo The fourth wall? I don't know what that is, but I do know that I'm more inclined to laugh at something said by a stand-up comedian when they don't laugh, because what they've said is actually funny.

@HijabaDabbaDoo Exactly. Like when someone says "I crack myself up" same sort of concept. It's funny, they thought so too.