When performing, the comedian can raise morale by 2 on a successful proficiency check. A failed check lowers morale by 2. For each failed check, a cumulative -1 modifier is assigned for this comedy set. DMs may allow modifiers to the comedian's proficiency check. Failure to prepare gives a modifier of -1.
Intelligence plays an important part in comedy.
Knowing what the audience wants and how to deliver it is important. On a roll of 1 the comedy was so good that people are falling out of their chairs and rolling on the floor. The comedian might have to stop until people regain the composure. Usually, a tougher crowd requires more morale checks. If the audience succeeds in a morale check, then the audience will tolerate the comedian, for now.