First, get together with your group and talk about each of your roles. Imagine what sort of occassion might bring your characters together. How might each of your characters feel toward the others? What would their motivations and loyalties be?
Sketch out a plot for your play. You might find some inspiration in the Resources section, where you'll find 25 dramatic situations listed.
When you write out your script, make sure each person has approximately the same amount of lines. In your script, you should also note characters' exits and entrances and any other stage directions. Are there any simple costumes or sets that you can use?
When you perform your play,
make sure everyone can hear your words clearly. Use expression and emotion
throughout your presentation.