A two-person presentation allows you to script an entire conversation and present the conversation as part of your presentation. Write two scripts, one for each of you, and read through your conversation until you both feel comfortable with the parts each of you will play. You can design your conversation to begin in the conventional way, with one speaker presenting to your audience. At specific areas of your speech, your partner will interrupt your speech with a scripted question. The questions should be designed to expand your presentation over specific elements of your speech, clarify important points or just to highlight important areas of interest. Make the interruptions as fun and relaxed as possible and feel free to react to them with your own interpretation of an angry, interrupted speaker.
Trivia games during a presentation can liven up a topic and get your audience into your presentation. Make sure to bring a supply of candy or other age appropriate gifts for your audience. While one of you presents your project to your audience, the other periodically calls out for the speaker to "stop!" When your primary speaker stops, your second speaker asks the audience a question about something your primary speaker just said. Questions may include an audience definition of an idea or connection to another subject matter. Success is cause for a reward.
The argument approach is difficult to achieve but helpful when demonstrating complicated relationships. Script your argument carefully. During your presentation, play through your script, enacting an argument over the subject in front of your class. For example, if you are presenting your audience with an informative speech over the British colonial period, you could enact an argument where one of you presents as your points the original British arguments supporting colonization, while the other presents the popular anti-colonial arguments. Your demonstration could lead your audience through this complicated period with a clear understanding of each side's arguments.
You can give all or a portion of your presentation in the form of a skit. You can re-enact an important historical conversation or scenario that illustrates your point. A presentation about presidential debates could contain a short skit where one of you plays the role of JFK and the other Richard Nixon, showing your audience their televised debate.