You take the stage with a partner and act out a scene (the location is given by the audience) and each of your lines must begin with the next letter of the alphabet. For example,

 

Player A: A wonderful today, isn't it Steven?

Player B: Bursting with life, it is true. But I must confess something.

Player A: Come now Steven, confide in your old friend. What troubles you?

Player B: ... Despite this wonderful day, I'd rather stay indoors... away from you.