introduce the scene and the character personalities subtly. provide a scenario or leadup to a punchline or funny anecdote
you walk out that door i'm never speaking to you again
you can't just kick me out NEIGH
provide the final leadup to the punchline or if enough leadup has been made make the punchline
i don't have a choice. i have abominable cancer. it's mostly terminal but some of it's a little bit more of a keyboard-only situation.
what?
provide the punchline if not already made or if the punchline has already been made, end the comic, make a second punchline, or just be a downright retard like this fucker and not be funny at all...
NEIGH
ha ha it's funny because i'm a horse and i only understand horse things