Make sure the comics adhere to the order. Any changes must be approved by the Ass Man. Ask comics what they'd like for their intro. Usually they will not care, but some may have upcoming shows to promote or TV credits to boast about. Learn the correct pronunciation of each performers name.
Treat acts with respect.
Tender egos are involved. Being mean-spirited is never acceptable. The last words of the intro should be the comic's name. Lead the applause as they come to the stage. Don't leave the stage until the comic has arrived.