This Troper's room mate found the following things funny:
A gigantic floating white masque telling the party what the main quest is.
Raubritters saying, "Let us reason together."
Raubritters shouting, "Slay me these idiots!"
Social interactions can bring out some funny moments. Like scaring off guards by pretending to be Axe Crazy. One of your party calling dibs on their boots while another complains about how messy last time was, all of the pieces causing the guards to run away screaming. Or trying to scare off bandits with a weapons drill and dropping your weapon in a bit of slapstick.